AT Command Interface Specification

HUAWEI MU736 HSPA+ M.2 Module
AT Command Interface Specification
Issue
02
Date
2013-06-18
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HUAWEI MU736 HSPA+ M.2 Module
AT Command Interface Specification
About This Document
About This Document
Revision History
Document
Version
Date
01
2013-03-15
02
2013-06-18
Issue 02 (2013-06-18)
Chapter
Descriptions
Creation
7.1.3
Updated the parameter description of
“AT+CGDCONT–Define PDP Context”
7.1.5
Updated the example of
“AT+CGDCONT–Define PDP Context”
10.3
Added the command of
“AT^HGMR–Query Version Information”
13.3.1
Updated the command syntax of
“AT+XTAMR–Query the Current
Temperature of a Thermal Sensor”
15.2
Updated CME Error List
15.13
Updated References
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AT Command Interface Specification
Contents
Contents
1 Introduction.................................................................................................................................. 15
1.1 Scope ............................................................................................................................................. 15
1.2 Overview ........................................................................................................................................ 15
1.3 Organization ................................................................................................................................... 15
1.4 Document Conventions .................................................................................................................. 16
1.5 AT Command Syntax ...................................................................................................................... 16
1.5.1 AT Command Types .............................................................................................................. 16
1.5.2 AT Command Parameter ....................................................................................................... 17
1.5.3 AT Command Description ...................................................................................................... 17
1.6 Abort Attributes of AT Command .................................................................................................... 18
1.7 Rules for Running AT Command .................................................................................................... 19
2 General Commands .................................................................................................................... 21
2.1 ATV–Set the Response Format...................................................................................................... 21
2.1.1 Command Syntax .................................................................................................................. 21
2.1.2 Interface Description.............................................................................................................. 21
2.1.3 Parameter Description ........................................................................................................... 21
2.1.4 Property Description .............................................................................................................. 22
2.1.5 Example ................................................................................................................................. 22
2.2 ATI–Request Identification ............................................................................................................. 22
2.2.1 Command Syntax .................................................................................................................. 22
2.2.2 Interface Description.............................................................................................................. 22
2.2.3 Parameter Description ........................................................................................................... 22
2.2.4 Property Description .............................................................................................................. 23
2.2.5 Example ................................................................................................................................. 23
2.3 AT+CGMI/AT+GMI–Request Manufacturer Identification .............................................................. 23
2.3.1 Command Syntax .................................................................................................................. 23
2.3.2 Interface Description.............................................................................................................. 24
2.3.3 Parameter Description ........................................................................................................... 24
2.3.4 Property Description .............................................................................................................. 24
2.3.5 Example ................................................................................................................................. 24
2.4 AT+CGMM/AT+GMM–Request Model Identification ...................................................................... 24
2.4.1 Command Syntax .................................................................................................................. 24
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2.4.2 Interface Description.............................................................................................................. 25
2.4.3 Parameter Description ........................................................................................................... 25
2.4.4 Property Description .............................................................................................................. 25
2.4.5 Example ................................................................................................................................. 25
2.5 AT+CGMR/AT+GMR–Request Software Version .......................................................................... 25
2.5.1 Command Syntax .................................................................................................................. 25
2.5.2 Interface Description.............................................................................................................. 26
2.5.3 Parameter Description ........................................................................................................... 26
2.5.4 Property Description .............................................................................................................. 26
2.5.5 Example ................................................................................................................................. 26
2.6 AT+CGSN/AT+GSN–Request Product IMEI .................................................................................. 26
2.6.1 Command Syntax .................................................................................................................. 26
2.6.2 Interface Description.............................................................................................................. 27
2.6.3 Parameter Description ........................................................................................................... 27
2.6.4 Property Description .............................................................................................................. 27
2.6.5 Example ................................................................................................................................. 27
2.7 AT+CSCS–Set the TE Character Set ............................................................................................. 28
2.7.1 Command Syntax .................................................................................................................. 28
2.7.2 Interface Description.............................................................................................................. 28
2.7.3 Parameter Description ........................................................................................................... 28
2.7.4 Property Description .............................................................................................................. 29
2.7.5 Example ................................................................................................................................. 29
3 Call Control Commands and Methods ................................................................................... 30
3.1 ATD–Originate a Data Service Call ................................................................................................ 30
3.1.1 Command Syntax .................................................................................................................. 30
3.1.2 Interface Description.............................................................................................................. 30
3.1.3 Parameter Description ........................................................................................................... 30
3.1.4 Property Description .............................................................................................................. 30
3.1.5 Example ................................................................................................................................. 30
4 Network Service Related Commands ..................................................................................... 31
4.1 AT+COPS–Select Operator............................................................................................................ 31
4.1.1 Command Syntax .................................................................................................................. 31
4.1.2 Interface Description.............................................................................................................. 32
4.1.3 Parameter Description ........................................................................................................... 32
4.1.4 Property Description .............................................................................................................. 33
4.1.5 Example ................................................................................................................................. 33
4.2 AT+CREG–Register Network ......................................................................................................... 34
4.2.1 Command Syntax .................................................................................................................. 34
4.2.2 Interface Description.............................................................................................................. 34
4.2.3 Parameter Description ........................................................................................................... 35
4.2.4 Property Description .............................................................................................................. 36
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AT Command Interface Specification
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4.2.5 Example ................................................................................................................................. 36
4.3 AT+CLCK–Lock Facility.................................................................................................................. 36
4.3.1 Command Syntax .................................................................................................................. 36
4.3.2 Interface Description.............................................................................................................. 37
4.3.3 Parameter Description ........................................................................................................... 37
4.3.4 Property Description .............................................................................................................. 38
4.3.5 Example ................................................................................................................................. 38
4.4 AT+CPWD–Change Password....................................................................................................... 39
4.4.1 Command Syntax .................................................................................................................. 39
4.4.2 Interface Description.............................................................................................................. 39
4.4.3 Parameter Description ........................................................................................................... 39
4.4.4 Property Description .............................................................................................................. 39
4.4.5 Example ................................................................................................................................. 40
4.5 AT+CUSD–USSD Command ......................................................................................................... 40
4.5.1 Command Syntax .................................................................................................................. 40
4.5.2 Interface Description.............................................................................................................. 40
4.5.3 Parameter Description ........................................................................................................... 41
4.5.4 Property Description .............................................................................................................. 42
4.5.5 Example ................................................................................................................................. 42
4.6 +CUSD–Unsolicitedly Present USSD of Network .......................................................................... 42
4.6.1 Command Syntax .................................................................................................................. 42
4.6.2 Interface Description.............................................................................................................. 42
4.6.3 Parameter Description ........................................................................................................... 42
4.6.4 Property Description .............................................................................................................. 42
4.6.5 Example ................................................................................................................................. 42
5 Mobile Termination Control and Status Commands .......................................................... 43
5.1 AT+CFUN–Set Operation Mode ..................................................................................................... 43
5.1.1 Command Syntax .................................................................................................................. 43
5.1.2 Interface Description.............................................................................................................. 44
5.1.3 Parameter Description ........................................................................................................... 44
5.1.4 Property Description .............................................................................................................. 44
5.1.5 Example ................................................................................................................................. 44
5.2 AT+CPIN–Enter PIN ....................................................................................................................... 45
5.2.1 Command Syntax .................................................................................................................. 45
5.2.2 Interface Description.............................................................................................................. 45
5.2.3 Parameter Description ........................................................................................................... 46
5.2.4 Property Description .............................................................................................................. 46
5.2.5 Example ................................................................................................................................. 46
5.3 AT+CPBS–Select Phonebook Memory Storage ............................................................................ 47
5.3.1 Command Syntax .................................................................................................................. 47
5.3.2 Interface Description.............................................................................................................. 47
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AT Command Interface Specification
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5.3.3 Parameter Description ........................................................................................................... 47
5.3.4 Property Description .............................................................................................................. 48
5.3.5 Example ................................................................................................................................. 48
5.4 AT+CPBR–Read Phonebook Entries ............................................................................................. 49
5.4.1 Command Syntax .................................................................................................................. 49
5.4.2 Interface Description.............................................................................................................. 49
5.4.3 Parameter Description ........................................................................................................... 49
5.4.4 Property Description .............................................................................................................. 50
5.4.5 Example ................................................................................................................................. 50
5.5 AT+CPBW–Write Phonebook Entry ............................................................................................... 51
5.5.1 Command Syntax .................................................................................................................. 51
5.5.2 Interface Description.............................................................................................................. 51
5.5.3 Parameter Description ........................................................................................................... 51
5.5.4 Property Description .............................................................................................................. 52
5.5.5 Example ................................................................................................................................. 52
5.6 AT+CRSM–Restrict SIM Access .................................................................................................... 53
5.6.1 Command Syntax .................................................................................................................. 53
5.6.2 Interface Description.............................................................................................................. 53
5.6.3 Parameter Description ........................................................................................................... 53
5.6.4 Property Description .............................................................................................................. 54
5.6.5 Example ................................................................................................................................. 54
5.7 AT+CSQ–Query the Signal Quality ................................................................................................ 54
5.7.1 Command Syntax .................................................................................................................. 54
5.7.2 Interface Description.............................................................................................................. 55
5.7.3 Parameter Description ........................................................................................................... 55
5.7.4 Property Description .............................................................................................................. 55
5.7.5 Example ................................................................................................................................. 56
6 Mobile Termination Errors ....................................................................................................... 57
6.1 AT+CMEE–Report Mobile Termination Error ................................................................................. 57
6.1.1 Command Syntax .................................................................................................................. 57
6.1.2 Interface Description.............................................................................................................. 57
6.1.3 Parameter Description ........................................................................................................... 58
6.1.4 Property Description .............................................................................................................. 58
6.1.5 Example ................................................................................................................................. 58
7 Commands for UMTS Packet Domain ................................................................................... 59
7.1 AT+CGDCONT–Define PDP Context............................................................................................. 59
7.1.1 Command Syntax .................................................................................................................. 59
7.1.2 Interface Description.............................................................................................................. 60
7.1.3 Parameter Description ........................................................................................................... 60
7.1.4 Property Description .............................................................................................................. 61
7.1.5 Example ................................................................................................................................. 61
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7.2 AT+CGACT–Activate or Deactivate PDP Context ......................................................................... 62
7.2.1 Command Syntax .................................................................................................................. 62
7.2.2 Interface Description.............................................................................................................. 63
7.2.3 Parameter Description ........................................................................................................... 63
7.2.4 Property Description .............................................................................................................. 63
7.2.5 Example ................................................................................................................................. 63
7.3 AT+CGATT–Attach or Detach PS Domain ..................................................................................... 63
7.3.1 Command Syntax .................................................................................................................. 63
7.3.2 Interface Description.............................................................................................................. 64
7.3.3 Parameter Description ........................................................................................................... 64
7.3.4 Property Description .............................................................................................................. 64
7.3.5 Example ................................................................................................................................. 65
7.4 AT+CGREG–PS Domain Registration Status ................................................................................ 65
7.4.1 Command Syntax .................................................................................................................. 65
7.4.2 Interface Description.............................................................................................................. 65
7.4.3 Parameter Description ........................................................................................................... 66
7.4.4 Property Description .............................................................................................................. 67
7.4.5 Example ................................................................................................................................. 67
7.5 AT+CGSMS–SMS Bearer Domain ................................................................................................. 67
7.5.1 Command Syntax .................................................................................................................. 67
7.5.2 Interface Description.............................................................................................................. 68
7.5.3 Parameter Description ........................................................................................................... 68
7.5.4 Property Description .............................................................................................................. 68
7.5.5 Example ................................................................................................................................. 68
8 PDU Mode Commands for SMS .............................................................................................. 70
8.1 AT+CSMS–Select Message Service .............................................................................................. 70
8.1.1 Command Syntax .................................................................................................................. 70
8.1.2 Interface Description.............................................................................................................. 70
8.1.3 Parameter Description ........................................................................................................... 71
8.1.4 Property Description .............................................................................................................. 71
8.1.5 Example ................................................................................................................................. 71
8.2 AT+CPMS–Select Message Storage ............................................................................................. 72
8.2.1 Command Syntax .................................................................................................................. 72
8.2.2 Interface Description.............................................................................................................. 72
8.2.3 Parameter Description ........................................................................................................... 72
8.2.4 Property Description .............................................................................................................. 73
8.2.5 Example ................................................................................................................................. 73
8.3 AT+CMGF–Set Message Format ................................................................................................... 74
8.3.1 Command Syntax .................................................................................................................. 74
8.3.2 Interface Description.............................................................................................................. 74
8.3.3 Parameter Description ........................................................................................................... 74
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8.3.4 Property Description .............................................................................................................. 75
8.3.5 Example ................................................................................................................................. 75
8.4 AT+CSCA–Service Center Address ............................................................................................... 75
8.4.1 Command Syntax .................................................................................................................. 75
8.4.2 Interface Description.............................................................................................................. 76
8.4.3 Parameter Description ........................................................................................................... 76
8.4.4 Property Description .............................................................................................................. 76
8.4.5 Example ................................................................................................................................. 76
8.5 AT+CNMI–Indicate New Message to TE ........................................................................................ 77
8.5.1 Command Syntax .................................................................................................................. 77
8.5.2 Interface Description.............................................................................................................. 77
8.5.3 Parameter Description ........................................................................................................... 78
8.5.4 Property Description .............................................................................................................. 81
8.5.5 Example ................................................................................................................................. 81
8.6 AT+CMGD–Delete Message .......................................................................................................... 81
8.6.1 Command Syntax .................................................................................................................. 81
8.6.2 Interface Description.............................................................................................................. 82
8.6.3 Parameter Description ........................................................................................................... 82
8.6.4 Property Description .............................................................................................................. 82
8.6.5 Example ................................................................................................................................. 82
8.7 AT+CMGL–List Messages.............................................................................................................. 83
8.7.1 Command Syntax .................................................................................................................. 83
8.7.2 Interface Description.............................................................................................................. 83
8.7.3 Parameter Description ........................................................................................................... 83
8.7.4 Property Description .............................................................................................................. 85
8.7.5 Example ................................................................................................................................. 85
8.8 AT+CMGR–Read Message ............................................................................................................ 86
8.8.1 Command Syntax .................................................................................................................. 86
8.8.2 Interface Description.............................................................................................................. 86
8.8.3 Parameter Description ........................................................................................................... 86
8.8.4 Property Description .............................................................................................................. 87
8.8.5 Example ................................................................................................................................. 87
8.9 AT+CMGS–Send Short Message................................................................................................... 87
8.9.1 Command Syntax .................................................................................................................. 87
8.9.2 Interface Description.............................................................................................................. 87
8.9.3 Parameter Description ........................................................................................................... 88
8.9.4 Property Description .............................................................................................................. 94
8.9.5 Example ................................................................................................................................. 94
8.10 AT+CNMA–New Message Acknowledgement ............................................................................. 95
8.10.1 Command Syntax ................................................................................................................ 95
8.10.2 Interface Description............................................................................................................ 95
8.10.3 Parameter Description ......................................................................................................... 96
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8.10.4 Property Description .......................................................................................................... 100
8.10.5 Example ............................................................................................................................. 100
8.11 +CMTI–Unsolicitedly Present of Message Arrival Indication...................................................... 101
8.11.1 Command Syntax .............................................................................................................. 101
8.11.2 Interface Description .......................................................................................................... 101
8.11.3 Parameter Description ....................................................................................................... 101
8.11.4 Property Description .......................................................................................................... 101
8.11.5 Example ............................................................................................................................. 101
8.12 +CMT–Unsolicitedly Present of New Message Reported Directly ............................................. 102
8.12.1 Command Syntax .............................................................................................................. 102
8.12.2 Interface Description.......................................................................................................... 102
8.12.3 Parameter Description ....................................................................................................... 102
8.12.4 Property Description .......................................................................................................... 102
8.12.5 Example ............................................................................................................................. 102
8.13 +CDSI–Unsolicitedly Present of Newly Received Message Status Report ............................... 102
8.13.1 Command Syntax .............................................................................................................. 102
8.13.2 Interface Description.......................................................................................................... 103
8.13.3 Parameter Description ....................................................................................................... 103
8.13.4 Property Description .......................................................................................................... 103
8.13.5 Example ............................................................................................................................. 103
8.14 +CDS–Unsolicitedly Present of New Message Status Report Reported Directly ...................... 103
8.14.1 Command Syntax .............................................................................................................. 103
8.14.2 Interface Description.......................................................................................................... 103
8.14.3 Parameter Description ....................................................................................................... 103
8.14.4 Property Description .......................................................................................................... 104
8.14.5 Example ............................................................................................................................. 104
8.15 +CBMI–Unsolicitedly Present of Newly Received Cell Broadcast Message ............................. 104
8.15.1 Command Syntax .............................................................................................................. 104
8.15.2 Interface Description.......................................................................................................... 104
8.15.3 Parameter Description ....................................................................................................... 104
8.15.4 Property Description .......................................................................................................... 104
8.15.5 Example ............................................................................................................................. 105
8.16 +CBM–Unsolicitedly Present of New Cell Broadcast Message Directly .................................... 105
8.16.1 Command Syntax .............................................................................................................. 105
8.16.2 Interface Description.......................................................................................................... 105
8.16.3 Parameter Description ....................................................................................................... 105
8.16.4 Property Description .......................................................................................................... 105
8.16.5 Example ............................................................................................................................. 105
9 Commands for Standard STK Interface ............................................................................... 106
9.1 +CUSATP–Unsolicitedly Present of a UICC Proactive Command .............................................. 106
9.1.1 Command Syntax ................................................................................................................ 106
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9.1.2 Interface Description............................................................................................................ 106
9.1.3 Parameter Description ......................................................................................................... 106
9.1.4 Property Description ............................................................................................................ 106
9.1.5 Example ............................................................................................................................... 106
9.2 AT+CUSATE–Send USAT Envelope ............................................................................................ 107
9.2.1 Command Syntax ................................................................................................................ 107
9.2.2 Interface Description............................................................................................................ 107
9.2.3 Parameter Description ......................................................................................................... 107
9.2.4 Property Description ............................................................................................................ 108
9.2.5 Example ............................................................................................................................... 108
9.3 AT+CUSATT–Send USAT Terminal Response ............................................................................ 108
9.3.1 Command Syntax ................................................................................................................ 108
9.3.2 Interface Description............................................................................................................ 108
9.3.3 Parameter Description ......................................................................................................... 109
9.3.4 Property Description ............................................................................................................ 109
9.3.5 Example ............................................................................................................................... 109
9.4 +CUSATEND–Unsolicitedly Present of Terminating a UICC Proactive Command Session........ 109
9.4.1 Command Syntax ................................................................................................................ 109
9.4.2 Interface Description............................................................................................................ 109
9.4.3 Property Description ............................................................................................................ 109
9.4.4 Example ................................................................................................................................ 110
10 Huawei Proprietary Interface: Mobile Termination Control and Status Interface .... 111
10.1 AT^RFSWITCH–Set the Flight Mode .......................................................................................... 111
10.1.1 Command Syntax ............................................................................................................... 111
10.1.2 Interface Description........................................................................................................... 111
10.1.3 Parameter Description ........................................................................................................ 112
10.1.4 Property Description ........................................................................................................... 112
10.1.5 Example .............................................................................................................................. 112
10.2 AT^CURC–Set Presentation of Unsolicited Results .................................................................... 112
10.2.1 Command Syntax ............................................................................................................... 112
10.2.2 Interface Description........................................................................................................... 113
10.2.3 Parameter Description ........................................................................................................ 113
10.2.4 Property Description ........................................................................................................... 117
10.2.5 Example .............................................................................................................................. 118
10.3 AT^HGMR–Request Version Information .................................................................................... 118
10.3.1 Command Syntax ............................................................................................................... 118
10.3.2 Interface Description........................................................................................................... 118
10.3.3 Parameter Description ........................................................................................................ 119
10.3.4 Property Description ........................................................................................................... 119
10.3.5 Example .............................................................................................................................. 119
11 Huawei Proprietary Interface: Network Service Interfaces ............................................ 120
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11.1 AT^SYSINFO–Query System Information .................................................................................. 120
11.1.1 Command Syntax .............................................................................................................. 120
11.1.2 Interface Description .......................................................................................................... 120
11.1.3 Parameter Description ....................................................................................................... 120
11.1.4 Property Description .......................................................................................................... 122
11.1.5 Example ............................................................................................................................. 122
11.2 AT^SYSCFG–Configure System ................................................................................................ 122
11.2.1 Command Syntax .............................................................................................................. 122
11.2.2 Interface Description .......................................................................................................... 123
11.2.3 Parameter Description ....................................................................................................... 123
11.2.4 Property Description .......................................................................................................... 124
11.2.5 Example ............................................................................................................................. 125
11.3 AT^CSNR–Query RSCP and ECIO ............................................................................................ 125
11.3.1 Command Syntax .............................................................................................................. 125
11.3.2 Interface Description .......................................................................................................... 125
11.3.3 Parameter Description ....................................................................................................... 126
11.3.4 Property Description .......................................................................................................... 126
11.3.5 Example ............................................................................................................................. 126
11.4 AT^USSDMODE–Set USSD Mode ............................................................................................ 126
11.4.1 Command Syntax .............................................................................................................. 126
11.4.2 Interface Description .......................................................................................................... 127
11.4.3 Parameter Description ....................................................................................................... 127
11.4.4 Property Description .......................................................................................................... 127
11.4.5 Example ............................................................................................................................. 127
12 Huawei Proprietary Interface: STK Interface .................................................................... 128
12.1 AT^CUSATM–Query the Main Menu .......................................................................................... 128
12.1.1 Command Syntax .............................................................................................................. 128
12.1.2 Interface Description.......................................................................................................... 128
12.1.3 Parameter Description ....................................................................................................... 128
12.1.4 Property Description .......................................................................................................... 129
12.1.5 Example ............................................................................................................................. 129
13 Huawei Proprietary Interface: M.2 Interface ..................................................................... 130
13.1 AT+XTSM–Set Thermal Sensor with the Threshold .................................................................. 130
13.1.1 Command Syntax .............................................................................................................. 130
13.1.2 Interface Description.......................................................................................................... 130
13.1.3 Parameter Description ....................................................................................................... 131
13.1.4 Property Description .......................................................................................................... 131
13.1.5 Example ............................................................................................................................. 131
13.2 +XTS–Unsolicitedly Present of the Threshold Reached ............................................................ 132
13.2.1 Command Syntax .............................................................................................................. 132
13.2.2 Interface Description.......................................................................................................... 132
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13.2.3 Parameter Description ....................................................................................................... 132
13.2.4 Property Description .......................................................................................................... 133
13.2.5 Example ............................................................................................................................. 133
13.3 AT+XTAMR–Query the Current Temperature of a Thermal Sensor ........................................... 133
13.3.1 Command Syntax .............................................................................................................. 133
13.3.2 Interface Description.......................................................................................................... 133
13.3.3 Parameter Description ....................................................................................................... 133
13.3.4 Property Description .......................................................................................................... 134
13.3.5 Example ............................................................................................................................. 134
13.4 AT+XADPCLKFREQINFO–Query Adaptive Clock Frequency Info............................................ 134
13.4.1 Command Syntax .............................................................................................................. 134
13.4.2 Interface Description.......................................................................................................... 135
13.4.3 Parameter Description ....................................................................................................... 135
13.4.4 Property Description .......................................................................................................... 135
13.4.5 Example ............................................................................................................................. 135
13.5 +XADPCLKFREQINFO–Unsolicitedly Present of Adaptive Clock Frequency Info .................... 136
13.5.1 Command Syntax .............................................................................................................. 136
13.5.2 Interface Description.......................................................................................................... 136
13.5.3 Parameter Description ....................................................................................................... 136
13.5.4 Property Description .......................................................................................................... 137
13.5.5 Example ............................................................................................................................. 137
14 Huawei Proprietary Interface: BodySAR Interface .......................................................... 138
14.1 AT^BODYSARON–Disable or Enable BodySAR ....................................................................... 138
14.1.1 Command Syntax .............................................................................................................. 138
14.1.2 Interface Description.......................................................................................................... 138
14.1.3 Parameter Description ....................................................................................................... 139
14.1.4 Property Description .......................................................................................................... 139
14.1.5 Example ............................................................................................................................. 139
14.2 AT^BODYSARWCDMA–Set the Max Tx Power Limit of WCDMA............................................. 139
14.2.1 Command Syntax .............................................................................................................. 139
14.2.2 Interface Description.......................................................................................................... 140
14.2.3 Parameter Description ....................................................................................................... 140
14.2.4 Property Description .......................................................................................................... 141
14.2.5 Example ............................................................................................................................. 141
14.3 AT^BODYSARGSM–Set the Maximum Tx Power Limit of GSM ............................................... 142
14.3.1 Command Syntax .............................................................................................................. 142
14.3.2 Interface Description.......................................................................................................... 142
14.3.3 Parameter Description ....................................................................................................... 143
14.3.4 Property Description .......................................................................................................... 144
14.3.5 Example ............................................................................................................................. 144
15 Appendix .................................................................................................................................. 145
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Contents
15.1 List of URC Commands ............................................................................................................. 145
15.2 CME Error List ............................................................................................................................ 145
15.3 CMS Error List ............................................................................................................................ 148
15.4 Final Result Codes ..................................................................................................................... 149
15.5 Initial Values of Command Parameters After MT Startup ........................................................... 150
15.6 AT Command Timeout Mechanism On the Client ...................................................................... 150
15.7 MT Searching Mechanism On the Client ................................................................................... 151
15.8 MT Usage Mechanism On the Client ......................................................................................... 152
15.8.1 MTs Already Connected to the Computer.......................................................................... 152
15.8.2 Client Started Before MTs Are Connected ......................................................................... 152
15.9 Process for the Client to Initialize the MT .................................................................................. 153
15.10 Segmentation and Concatenation of Long Messages ............................................................. 157
15.10.1 Segmentation and Concatenation Mechanism ............................................................... 157
15.10.2 Concatenation Mechanism .............................................................................................. 158
15.11 Network Searching Flowcharts ................................................................................................. 160
15.11.1 Automatic Login ............................................................................................................... 160
15.11.2 Manual Login ................................................................................................................... 160
15.11.3 Phonebook Information Reading Process ....................................................................... 161
15.12 SIM Lock Solution .................................................................................................................... 162
15.13 References ............................................................................................................................... 162
15.14 Acronyms and Abbreviations .................................................................................................... 163
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AT Command Interface Specification
Introduction
1
Introduction
1.1 Scope
This document describes AT command interface specifications that is supported by
Huawei terminal product MU736 module.
Please read the release note released with the firmware software before using MU736
module and this document.
1.2 Overview
This document describes certain AT commands (implemented by terminal devices) of
international standards such as 3GPP TS 27.007 3d0, 3GPP TS 27.005 320, and
ITU-T Recommendation V.25 ter according to the requirements of terminal devices. In
addition, this document describes the proprietary AT command interfaces that are
implemented by terminal devices. These proprietary AT command interfaces help
implement a certain function.
This document does not describe the interfaces that have been defined by standards
or implemented by the mobile terminal (MT) but are not required by the Huawei
terminal product. The description of AT command interfaces covers only the data
packets of interfaces and the methods and processes for the TE and the MT to use
interfaces, excluding the contents that are not directly related to interfaces. In addition,
this document describes only the AT command interfaces falling within the range of
Rm interfaces between the TE and MT, excluding the AT command interfaces falling
within the range of Um interfaces between the MT and IWF.
AT commands are communication command protocols between TEs and MTs. If a
new MT is to interconnect with an existing TE implemented based on this AT
specification, the MT must comply with the specification. If a TE or MT does not
communicate by using AT commands, this specification does not apply.
1.3 Organization
Chapter 2 "General Commands" to chapter 9 "Commands for Standard STK Interface"
describe AT interfaces defined in international standards such as 3GPP and ITU-T.
The content is based on the structure of 3GPP TS 27.007.
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AT Command Interface Specification
Introduction
Chapter 10 "Huawei Proprietary Interface: Mobile Termination Control and Status
Interface" to chapter 14 "Huawei Proprietary Interface: BodySAR Interface" describe
Huawei proprietary interfaces.
1.4 Document Conventions
Section "Property Description" of each command marks the property of each AT
command. Where, N means No, Y means Yes and NA means Not Applicable.
For example:
Saving upon Power-off
PIN
N
N
The settings are described as following:

Parameter settings in the command are not saved after the MT is powered off.

This command is not controlled by personal identity numbers (PINs).
1.5 AT Command Syntax
1.5.1 AT Command Types
Table 1-1 Types of AT commands
AT command type
Syntax
Function
Set command
AT<name>=<…>
A set command is executed to
set parameters.
Execution command
AT<name>
An execution command
performs a specific action in
addition to interacting with the
local parameters of the MS.
Read command
AT<name>?
A read command is executed to
read the current value of a
parameter.
Test command
AT<name>=?
A test command is executed to
return the available value range
of each parameter supported by
the command.
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AT Command Interface Specification
Introduction
1.5.2 AT Command Parameter
You are not advised to use various parameter values that are not described in this
document or not supported currently as described in this document.
The AT command parameters described in the following chapters are in two formats:
<> and [], which are described as follows:
<...>: The parameter inside these angle brackets is mandatory. The <> does not exist
in a command.
[...]: The parameter inside these square brackets is optional. The [] does not exist in a
command or a response.
<CR>: Carriage return character. For details, see the description of the ATS3
command.
<LF>: Line feed character. For details, see the description of the ATS4 command.
According to the AT command specifications for GSM and WCDMA in 3GPP TS
27.007, there is a component named TA between TE and MT. Physically, TA can be
integrated with either TE or MT. In this document, TA is integrated with MT. In TIA/EIA
IS 707-A, TA is not specified. To simplify the description in this document, TA is
ignored. The client on a computer is treated as TE, and MT is treated as TA+MT.
Note:
If all parameters are not specified, "=" is not required.
1.5.3 AT Command Description
An AT command controls the rules for interaction between the TE such as PC and MT
such as MS. Figure 1-1 shows the interaction between the TE and MT.
Figure 1-1 Interaction between the TE and MT
AT cmds
Result codes
TE
MT
Information text
Network messages
USER &APPLICATIONS
NETWORK
Figure 1-2 shows the basic organization format of the AT command line.
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AT Command Interface Specification
Introduction
Figure 1-2 Basic organization format the AT command line
read command for checking
current subparameter values
subparameter
command line prefix
extended commands are
delimited with semicolon
command line
termination character
ATCMD1 CMD2=12; +CMD1; +CMD2=,,15; +CMD2?; +CMD2=?<CR>
basic command
(no + prefix)
subparameters
may be omitted
extended command
test command for checking
(prefixed with +)
possible subparameter values
The returned value of the AT command consists of two parts: response message and
result codes. Figure 1-3 shows an example of returned value of the AT command.
Figure 1-3 An example of returned value of the AT command
information response to +CMD2=?
also string type subparameters possible
information response to +CMD2?
<CR><LF>+CMD2: 3,0,15,"GSM"<CR><LF>
<CR><LF>+CMD2: (0-3),(0,1),(0-12,15),("GSM","IRA")<CR><LF>
<CR><LF>OK<CR><LF>
shows acceptable ranges of each subparameter
final result code
1.6 Abort Attributes of AT Command
Abort means that the TE sends an instruction to abort a command when the
command is being executed. An abort instruction must be sent before a command is
completely executed. Therefore, the abort instruction is valid for a command whose
execution consumes certain time; however, not all commands of this kind can be
aborted. Whether a command can be aborted depends on the abort attribute of the
command. Each AT command has its abort attribute, which is alternative. That is, the
command is either abortive or not abortive. Within 125 ms after the abortive
commands are sent, no abort request is accepted. After 125 ms and before the
commands are completely executed, if the module receives any character sent by the
TE, the commands are aborted immediately.
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AT Command Interface Specification
Introduction
The following commands can be aborted.
ATD
Can be aborted
AT+CLCK
Can be aborted
AT+COPS
Can be aborted except "AT+COPS=?"
1.7 Rules for Running AT Command
1.
Each interface should be functionally convergent.
2.
Since the AT command is a packet transmitted via communication port, the
packet size is limited. For the transmission of AT command, in addition to the two
characters “AT”, a maximum of 260 characters can be received (including the
empty characters at the end). For the “response” message or URC reported by
the board, the maximum length is limited to 668 characters.
3.
Each command line contains only one AT command and ends with a carriage
return character. For the URC instruction or response reported from MT to TE,
only one AT command is allowed in a command line. In principle, users are not
allowed to run S3/S4 format modification commands. This rule is applicable to the
communication between the MT and TE programs.
4.
To increase the readability and regularity of command and response formats, in
addition to the original interfaces specified in standards and protocols, all new
interfaces must observe the following rule: No space is added to the end of
commands such as the AT^XXX:<arg0>,<arg1> commands, or added to the end
of the ^ symbol, colon, and comma. No redundant space is added ahead of or to
the end of a command. This rule is applicable to the communication between the
MT and TE programs.
5.
For an AT command that cannot be interrupted, after sending the AT command,
the TE must wait until the MT responds to the AT command before sending the
second AT command.
6.
For the AT command to which the response is given only after a long time, in
order to prevent interference on other events, it is recommended to report the
final execution result asynchronously. If the ME responds to the TE only after a
long time of waiting, the response of command may be interrupted by URC.
There are two kinds of interruption:
−
Case 1: A URC is presented when the TE is waiting for response after sending
a command. This command will be kept in waiting state until the TE finishes
receiving the URC, and then the response to this command is presented.
−
Case 2: A URC is presented when the TE is waiting for response after sending
a command. The command continues to be executed. Therefore, response to
the command may be mixed with the URC.
7.
Unless otherwise specified, all default codes between TE and MS take on this
format: GSM 7-bit Default Alphabet. See also Section 6 in protocol 23.038. The
character @ is transmitted on the interface still according to 0x00 of 7-bit coding.
The board software and API should be able to process this character. The board
uploads the carriage return character (<CR>) and linefeed character (<LF>) in
the string in the form of space.
8.
A string refers to a byte stream that is placed inside double quotation marks,
excluding the quotation marks or commas.
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AT Command Interface Specification
9.
Introduction
A string used by the TE to send a command cannot contain the combination of
quotation marks and commas (confusing a parameter with a string). The current
version does not support escape character. The code value of a data format in
the UCS2 coding is reported as characters. For example, if the UCS2 code of a
Chinese character is 0x553a, the 553a is reported.
10. A possible response sent by the MT to the TE consists of Information text and
Result code, in which Information text is optional and Result code is
mandatory. The format of a possible response is controlled by the ATV command.
For details, see the description of the ATV Command. In this document, all
possible responses listed in tables follow the ATV1 format.
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AT Command Interface Specification
General Commands
2
General Commands
2.1 ATV–Set the Response Format
2.1.1 Command Syntax
Execution command
ATV[<value>]
Possible Response(s)
<CR><LF>OK<CR><LF>
2.1.2 Interface Description
This command sets the format of the result code and information field in response to
an AT command, including the composition of the header and the tail and the form of
the returned result code content. The returned result code content has two formats,
namely, digit, and detailed string.
The following table describes the impact of the format setting on the format of the
result code and the response information field. <CR> indicates the S3 character and
<LF> indicates the S4 character.
Command
V0
Information responses <text><CR><LF>
Result codes
<numeric code><CR>
V1
<CR><LF><text><CR><LF>
<CR><LF><verbose
code><CR><LF>
2.1.3 Parameter Description
<value>:
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AT Command Interface Specification
General Commands
0
The MT sends an abbreviated header and tail and adopts the result
code in the digit format.
1
The MT sends a complete header and tail and adopts the result code in
the detailed string format. (default value)
If <value> is not specified, it is equivalent to set <value> to 0.
2.1.4 Property Description
Saving upon Power-off
PIN
N
N
2.1.5 Example
Run:
ATV1
Response:
OK
2.2 ATI–Request Identification
2.2.1 Command Syntax
Execution command
ATI[<value>]
Possible Response(s)
<CR><LF><list of MS ID info><CR><LF><CR><LF>OK<CR><LF>
2.2.2 Interface Description
The ATI command queries the ID information about the MS, including:
Manufacturer (AT+GMI)
Product model (AT+GMM)
Software version (AT+GMR)
ESN/IMEI (AT+GSN)
Capability list (AT+GCAP)
2.2.3 Parameter Description
<value>: an integer type value and the valid value set is 0–1.
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AT Command Interface Specification
0
General Commands
Queries the previously described MS ID information.
If <value> is not specified, it is equivalent to <value>=0.
2.2.4 Property Description
Saving upon Power-off
PIN
NA
N
2.2.5 Example
Run:
ATI
Response:
Manufacturer: Huawei Technologies Co., Ltd.
Model: MU736
Revision: 11.103.12.00.00
IMEI: 492100022000114
+GCAP: +CGSM
OK
2.3 AT+CGMI/AT+GMI–Request Manufacturer
Identification
2.3.1 Command Syntax
Execution command
AT+CGMI
Possible Response(s)
<CR><LF><manufacturer><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CGMI=?
Possible Response(s)
<CR><LF>OK<CR><LF>
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AT Command Interface Specification
General Commands
2.3.2 Interface Description
The execution command queries the MT's manufacturer information. AT+GMI and
AT+CGMI have the same function and syntax.
The test command returns "OK".
2.3.3 Parameter Description
<manufacturer>: a string indicating the manufacturer information.
Unless otherwise specified, "Huawei Technologies Co., Ltd." is returned.
2.3.4 Property Description
Saving upon Power-off
PIN
NA
N
2.3.5 Example
Run:
AT+CGMI
Response:
Huawei Technologies Co., Ltd.
OK
2.4 AT+CGMM/AT+GMM–Request Model Identification
2.4.1 Command Syntax
Execution command
AT+CGMM
Possible Response(s)
<CR><LF><production_name><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CGMM=?
Possible Response(s)
<CR><LF>OK<CR><LF>
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AT Command Interface Specification
General Commands
2.4.2 Interface Description
The execution command queries the MT's model identification. Both AT+CGMM and
AT+GMM query the MT's model ID. The model ID's value can be one or more lines of
text, determined by the MT's manufacturer. The model ID is used to identify the
product model and can contain the product name and information that the
manufacturer wants to provide. The number of characters, including line terminators,
in the response to this command cannot exceed 2048. The sequence 0<CR> or
OK<CR> is not allowed in the response.
The test command returns "OK".
2.4.3 Parameter Description
<production_name>: product name.
2.4.4 Property Description
Saving upon Power-off
PIN
NA
N
2.4.5 Example
Product name: MU736
Run:
AT+CGMM
Response:
MU736
OK
2.5 AT+CGMR/AT+GMR–Request Software Version
2.5.1 Command Syntax
Execution command
AT+CGMR
Possible Response(s)
<CR><LF><softversion><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CGMR=?
Possible Response(s)
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AT Command Interface Specification
General Commands
<CR><LF>OK<CR><LF>
2.5.2 Interface Description
The execution command causes the ME to return its software version. AT+GMR and
AT+CGMR have the same function and syntax.
The test command returns "OK".
2.5.3 Parameter Description
<softversion>: software version, a string with up to 31 characters. The sequence
0<CR> or OK<CR> is not allowed in the response.
2.5.4 Property Description
Saving upon Power-off
PIN
NA
N
2.5.5 Example
Run:
AT+CGMR
Response:
11.103.13.00.00
OK
2.6 AT+CGSN/AT+GSN–Request Product IMEI
2.6.1 Command Syntax
Execution command
AT+CGSN
Possible Response(s)
<CR><LF><IMEI><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CGSN=?
Possible Response(s)
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AT Command Interface Specification
General Commands
<CR><LF>OK<CR><LF>
2.6.2 Interface Description
The execution command requests the MT's IMEI. AT+GSN and AT+CGSN have the
same function and syntax.
The test command returns "OK".
2.6.3 Parameter Description
<IMEI>: the MT's IMEI. The returned IMEI is a string consisting of 15 digits described
in the following table.
8 char
6 char
1 char
TAC
SNR
Spare
TAC : the type approval code assigned to the MT.
SNR : the MT's serial number.
Spare: spare digit.
2.6.4 Property Description
Saving upon Power-off
PIN
NA
N
2.6.5 Example
If the TAC is "35154800", the SNR is "022544", and the spare digit is 4, then
Run:
AT+CGSN
Response:
351548000225444
OK
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AT Command Interface Specification
General Commands
2.7 AT+CSCS–Set the TE Character Set
2.7.1 Command Syntax
Set command
AT+CSCS=<chset>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CSCS?
Possible Response(s)
<CR><LF>+CSCS: <chset><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CSCS=?
Possible Response(s)
<CR><LF>+CSCS: (list of supported
<chset>s)<CR><LF><CR><LF>OK<CR><LF>
2.7.2 Interface Description
The set command notifies TA of the TE's current character set so that TA can correctly
convert TE's and MT's character sets. If TA and TE use an 8-bit interface but TE uses
a 7-bit character set, the most significant bit of a character sent by the TE is set to 0.
The read command queries the current TE character set.
The test command queries the character set supported by the TE.
2.7.3 Parameter Description
<chset>: at present, the default character set used by MS is "IRA". Other character
sets are listed below (only the "IRA", "GSM" and "UCS2" character sets are supported
currently).
"GSM"
GSM 7 bit default alphabet (3GPP TS 23.038); this setting causes
easily software flow control (XON/XOFF) problems.
"IRA"
International reference alphabet (ITU–T T.50) (default value)
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AT Command Interface Specification
"UCS2"
General Commands
16-bit universal multiple-octet coded character set (ISO/IEC10646);
UCS2 character strings are converted to hexadecimal numbers from
0000 to FFFF; for example, "004100620063" equals three 16-bit
characters with decimal values 65, 98 and 99.
Note:
If MT is using GSM 7 bit default alphabet, its characters shall be padded with 8th bit (zero)
before converting them to hexadecimal numbers (i.e. no SMS-style packing of 7-bit alphabet).
2.7.4 Property Description
Saving upon Power-off
PIN
N
N
2.7.5 Example
Run:
AT+CSCS=?
Response:
+CSCS: ("UCS2","IRA","GSM")
OK
Run:
AT+CSCS?
Response:
+CSCS: "IRA"
OK
Run:
AT+CSCS="GSM"
Response:
OK
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AT Command Interface Specification
3
Call Control Commands and Methods
Call Control Commands and Methods
3.1 ATD–Originate a Data Service Call
3.1.1 Command Syntax
Execution command
ATD[<digits>]
Possible Response(s)
<CR><LF>OK<CR><LF>
3.1.2 Interface Description
This command initiates a data service call.
3.1.3 Parameter Description
<digits>: the called phone number, ASCII characters. Valid characters are '0'–'9', '*',
'#', and '+'. '+' is only allowed before a phone number. The maximum length of a phone
number is 24 characters (excluding '+'). <digits> should be specified.
3.1.4 Property Description
Saving upon Power-off
PIN
NA
Y
3.1.5 Example
Run:
ATD*99#
Response:
CONNECT 21600000
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AT Command Interface Specification
4
Network Service Related Commands
Network Service Related Commands
4.1 AT+COPS–Select Operator
4.1.1 Command Syntax
Set command
AT+COPS=<mode>[,<format>[,<oper>[,<Act>]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+COPS?
Possible Response(s)
<CR><LF>+COPS:
<mode>[,<format>,<oper>[,<Act>]]<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+COPS=?
Possible Response(s)
<CR><LF>+COPS: [list of supported (<stat>,long alphanumeric <oper>,short
alphanumeric <oper>,numeric <oper>[,<Act>])s][,,(list of supported
<mode>s),(list of supported <format>s)]<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
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Network Service Related Commands
4.1.2 Interface Description
The set command automatically or manually selects a GSM or UMTS network. When
<Act> is not specified in the command, the <Act> setting on the MT is not changed.
The read command returns the current network selection mode. If the registration is
successful, the current operator information will be returned.
The test command returns the list of (up to 20) operators existent in the current
network.
Note:
When <mode>=1, the command is aborted, and it will return OK for aborting.
4.1.3 Parameter Description
<mode>: network selection mode, saved upon Power-off.
0
Automatic selection. When <mode> is set to 0, do not specify the
parameters following <mode>.
1
Manual selection
2
Network deregistration
3
Set only <format> (for the format of the response to the read
command AT+COPS?)
4
Manual/automatic selection; if manual selection fails, automatic mode
(<mode>=0) is used.
<format>: format of the operator information <oper>.
0
Long format alphanumeric <oper> (default value)
1
Short format alphanumeric <oper>
2
Numeric <oper>
<oper>: operator information.
<stat>: network state.
0
Unknown
1
Available
2
Current
3
Forbidden
<Act>: access technology selected.
0
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AT Command Interface Specification
Network Service Related Commands
1
GSM Compact (not supported currently)
2
UTRAN
4.1.4 Property Description
Saving upon Power-off
PIN
NA
Y
4.1.5 Example
1.
Obtaining available operator list
Run:
AT+COPS=?
Response:
+COPS: (2,"","","46007",2),
Obtain
available
operator list
(3,"CHN-UNICOM","UNICOM","46001",0),
(3,"CHINA
MOBILE","CMCC","46000",0),,(0,1,2,3,
4),(0,1,2)
OK
2.
Automatic selection
Run:
AT+COPS=0
Response:
OK
Note:
In automatic selection mode, only <mode> is valid. Do not specify other parameters in the
command.
3.
Manual selection
Run:
AT+COPS=1,2,"46000"
Response:
OK
Notes:

CME ERROR will be returned when logging in to a nonexistent network or a network that
cannot be logged in to (unless in the situation that services are restricted or services are
restricted for the current zone).

The current network state can be queried using the AT+CREG? or AT+CGREG? command.
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AT Command Interface Specification
4.
Network Service Related Commands
Requesting network state
Run:
AT+COPS?
Response:
+COPS: 1,0,"CHINA MOBILE"
Returns the current network
selection mode, information
about the operator with which
the MT registers, and the
wireless access technology
OK
4.2 AT+CREG–Register Network
4.2.1 Command Syntax
Set command
AT+CREG=[<n>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CREG?
Possible Response(s)
<CR><LF>+CREG:
<n>,<stat>[,<lac>,<ci>[,<AcT>]]<CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CREG=?
Possible Response(s)
<CR><LF>+CREG: (list of supported <n>s)<CR><LF><CR><LF>OK<CR><LF>
4.2.2 Interface Description
The set command controls the presentation of an unsolicited result code +CREG.
The read command returns the current registration status <stat>. Location
information elements <lac>, <ci> and <AcT> are returned only when <n>=2.
The test command returns the supported values of <n>.
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AT Command Interface Specification
Network Service Related Commands
4.2.3 Parameter Description
<n>:
0
Disable network registration unsolicited result code +CREG.
1
Enable network registration unsolicited result code +CREG: <stat>.
2
Enable network registration and location information unsolicited result
code +CREG: <stat>[,<lac>,<ci>[,<AcT>]]. (default value)
<stat>:
0
Not registered, MS is not currently searching for a new operator to
register with.
1
Registered, home network
2
Not registered, but MS is currently searching for a new operator to
register with.
3
Registration denied
4
Unknown
5
Registered, roaming
<lac>: string type; two byte location area code or tracking area code in hexadecimal
format (e.g. "00C3" equals 195 in decimal, and means two bytes of "0x00" and
"0xC3").
<ci>: string type; four byte GERAN/UTRAN/E-UTRAN cell ID in hexadecimal format.
<AcT>: access technology of the registered network.
0
GSM
1
GSM Compact (not supported currently)
2
UTRAN
3
GSM w/EGPRS (see Note 1)
4
UTRAN w/HSDPA (see Note 2)
5
UTRAN w/HSUPA (see Note 2)
6
UTRAN w/HSDPA and HSUPA (see Note 2)
7
E-UTRAN (not supported currently)
Notes:
1. 3GPP TS 44.060 specifies the system information messages which give the information
about whether the serving cell supports EGPRS.
2. 3GPP TS 25.331 specifies the system information blocks which give the information about
whether the serving cell supports HSDPA or HSUPA.
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AT Command Interface Specification
Network Service Related Commands
4.2.4 Property Description
Saving upon Power-off
PIN
N
Y
4.2.5 Example
Run:
AT+CREG?
Response:
+CREG: 2,1,"2513","000E01F4",6
OK
Run:
AT+CREG=1
Response:
OK
Run:
AT+CREG=?
Response:
+CREG: (0-2)
OK
4.3 AT+CLCK–Lock Facility
4.3.1 Command Syntax
Set command
AT+CLCK=<fac>,<mode>[,<passwd>[,<class>]]
Possible Response(s)
When <mode>=2 and the command is executed successfully:
<CR><LF>+CLCK: <status><CR><LF><CR><LF>OK<CR><LF>
When <mode>≠2 and the command is executed successfully:
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CLCK=?
Possible Response(s)
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AT Command Interface Specification
Network Service Related Commands
<CR><LF>+CLCK: (list of supported
<fac>s)<CR><LF><CR><LF>OK<CR><LF>
4.3.2 Interface Description
The set command locks, unlocks or interrogates an MT or a network facility <fac>.
The test command returns the supported facilities.
4.3.3 Parameter Description
<fac>: specifies the target of this command.
"SC"
SIM card (if this parameter is set, MT will request the password during
startup.)
"AB"
All barring services (applicable only for <mode>=0)
"AC"
All incoming barring services
"AG"
All outGoing barring services
"AI"
Bar all incoming calls
"AO"
Bar all outgoing calls
"OI"
Bar outgoing international calls
"OX"
Bar outgoing international calls except to home country
"PN"
Network Personalization
"IR"
BIC-Roam (Bar incoming calls when roaming outside the home
country) (refer to GSM 02.88 clause 2)
"FD"
SIM fixed dialing memory feature (if PIN2 authentication has not been
done during the current session, PIN2 is required as <passwd>.)
Note:
The passwords for "SC" and "FD" are stored on the SIM card; other passwords are set on the
network side.
<mode>: integer type; operating mode.
0
Unlock
1
Lock
2
Query status
<status>: integer type; current status.
0
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AT Command Interface Specification
1
Network Service Related Commands
Active
<passwd>: string type; shall be enclosed in quotation marks when specified in the
command and be the same as the password specified using the AT+CPWD command.
When <mode>=0 or 1, <passwd> is mandatory. When <mode>=2, <passwd> is not
required. The characters in <passwd> must range from '0' to '9'.
<class>: not supported currently.
1
Voice (telephony)
2
Data
4
Fax
8
Short message service
4.3.4 Property Description
Saving upon Power-off
PIN
Y
Y
4.3.5 Example
Run:
AT+CLCK=?
Response:
+CLCK: ("AO","OI","AI","IR","OX","AB","AG","AC",
"PS","PN","PU","PP","PC","SC","FD")
OK
Run:
AT+CLCK="SC",2
Response:
+CLCK: 0
OK
Run:
AT+CLCK="SC",1,"1234"
Response:
OK
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AT Command Interface Specification
Network Service Related Commands
4.4 AT+CPWD–Change Password
4.4.1 Command Syntax
Set command
AT+CPWD=<fac>,<oldpwd>,<newpwd>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CPWD=?
Possible Response(s)
<CR><LF>+CPWD: list of supported
(<fac>,<pwdlength>)s<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
4.4.2 Interface Description
The set command sets a new password for the facility lock function.
The test command returns a list of pairs which present the available facilities and the
maximum length of their password.
4.4.3 Parameter Description
<fac>: specifies the target of this command. For details about the parameter values,
refer to the AT+CLCK command.
"P2"
SIM PIN2
<oldpwd>, <newpwd>: string type; old password and new password whose
maximum lengths are specified by <pwdlength>. The characters allowed in
<oldpwd> and <newpwd> must range from '0' to '9'.
<pwdlength>: integer type maximum length of the password for the facility.
4.4.4 Property Description
Saving upon Power-off
PIN
NA
Y
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AT Command Interface Specification
Network Service Related Commands
4.4.5 Example
Run:
AT+CPWD=?
Response:
+CPWD: ("SC",8),("P2",8),("AO",4),("OI",4),("OX",
4),("AI",4),("IR",4),("AB",4),("AG",4),("AC",4)
OK
Run:
AT+CPWD="SC","1234","1111"
Response:
OK
4.5 AT+CUSD–USSD Command
4.5.1 Command Syntax
Set command
AT+CUSD=[<n>[,<str>[,<dcs>]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CUSD?
Possible Response(s)
<CR><LF>+CUSD: <n><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CUSD=?
Possible Response(s)
<CR><LF>+CUSD: (list of supported <n>s)<CR><LF><CR><LF>OK<CR><LF>
4.5.2 Interface Description
The set command sends the USSD (Unstructured Supplementary Service Data)
message to the network.
The read command queries the USSD mode.
The test command returns the supported values of <n>.
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AT Command Interface Specification
Network Service Related Commands
4.5.3 Parameter Description
<n>: integer type (sets/shows the result code presentation status to the TE).
0
Disable the result code presentation to the TE.
1
Enable the result code presentation to the TE.
2
Cancel session (not applicable to the read command response)
<str>: string type USSD-string (when <str> parameter is not given, network is not
interrogated):

If <dcs> indicates that 3GPP TS 23.038 7 bit default alphabet is used.
−
If TE character set other than "HEX" (refer section 2.7 AT+CSCS–Set the TE
Character Set): MT/TA converts GSM alphabet into current TE character set
according to rules of 3GPP TS 27.005.
−
If TE character set is "HEX": MT/TA converts each 7-bit character of GSM
alphabet into two IRA character long hexadecimal number (e.g. character 
(GSM 23) is presented as 17 (IRA 49 and 55)).

If <dcs> indicates that 8-bit data coding scheme is used: MT/TA converts each
8-bit octet into two IRA character long hexadecimal number (e.g. octet with
integer value 42 is presented to TE as two characters 2A (IRA 50 and 65)).

If <dcs> indicates that 16-bit data coding scheme (UCS2) is used: MT/TA splits
the 16 bits into two 8-bit octets. Each of those octets are converted as per the
8-bit data coding scheme, with the most significant octet first (e.g. decimal value
4906 is presented to TE as four characters 132A (IRA 49, 51, 50 and 65)).

If <str> is null, then the module will treat the command as AT+CUSD=<n>.
<dcs>: integer type (shows Cell Broadcast Data Coding Scheme, see 3GPP TS
23.038).
When the AT command AT^USSDMODE=0, the UE only can support the GSM 7bit and
8bit data coding scheme, not support the UCS2 data coding scheme.
<m>: integer type (shows the USSD response from the network or the network
initiated operation).
0
No further user action required (network initiated USSD–Notify, or no
further information needed after mobile initiated operation)
1
Further user action required (network initiated USSD–Request, or
further information needed after mobile initiated operation)
2
USSD terminated by network
3
Other local client has responded
4
Operation not supported
5
Network time out
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AT Command Interface Specification
Network Service Related Commands
4.5.4 Property Description
Saving upon Power-off
PIN
NA
Y
4.5.5 Example
Run:
AT+CUSD=1,"AAD808",15
Response:
OK
4.6 +CUSD–Unsolicitedly Present USSD of Network
4.6.1 Command Syntax
URC
<CR><LF>+CUSD: [<m>[,<str>[,<dcs>]]]<CR><LF>
4.6.2 Interface Description
When the network responses to USSD originated by MT, or it requests USSD, MT will
unsolicitedly report "+CUSD: [<m>[,<str>[,<dcs>]]]" to TE.
4.6.3 Parameter Description
The definition of its parameters and the use of this command see section 4.5
AT+CUSD–USSD Command.
4.6.4 Property Description
Saving upon Power-off
PIN
NA
Y
4.6.5 Example
Response:
+CUSD: 0,"CD69724A74EA1A385B6C9683CD6E30182C5703"
,15
+CUSD: 2
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AT Command Interface Specification
5
Mobile Termination Control and Status
Commands
Mobile Termination Control and
Status Commands
5.1 AT+CFUN–Set Operation Mode
5.1.1 Command Syntax
Set command
AT+CFUN[=<fun>[,<rst>]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR:<err><CR><LF>
Read command
AT+CFUN?
Possible Response(s)
<CR><LF>+CFUN: <fun><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR:<err><CR><LF>
Test command
AT+CFUN=?
Possible Response(s)
<CR><LF>+CFUN: (list of supported <fun>s),(list of supported
<rst>s)<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR:<err><CR><LF>
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
5.1.2 Interface Description
The set command sets the MT mode or restarts the MT.
The read command returns the current mode.
The test command returns the supported parameter values.
5.1.3 Parameter Description
<fun>:
0
Set as LPM (low power consumption) mode
1
Set as online mode (default value)
4
Mode to disable phone both transmit and receive RF circuits. Airplane
mode
16
Mode to simulate reset (this will reset MS including SIM)
<rst>: whether to restart MS before setting.
0
Do not restart MT before setting (<fun> is set to 1, 4)
1
Restart the MT before setting (<fun> is set to 1, 4)
5.1.4 Property Description
Saving upon Power-off
PIN
NA
N
5.1.5 Example
Run:
AT+CFUN?
Response:
+CFUN: 0
OK
Run:
AT+CFUN=1
Response:
OK
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
5.2 AT+CPIN–Enter PIN
5.2.1 Command Syntax
Set command
AT+CPIN=<pin>[,<newpin>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CPIN?
Possible Response(s)
<CR><LF>+CPIN: <code><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CPIN=?
Possible Response(s)
<CR><LF>OK<CR><LF>
5.2.2 Interface Description
The set command verifies and unblocks PIN.
If the current password required is PIN, run AT+CPIN=<pin> to verify PIN.
If the current password required is PUK, run AT+CPIN=<pin>,<newpin> to unblock
the PIN. In "AT+CPIN=<pin>[,<newpin>]", <pin> is the SIM PUK, and <newpin>
is the new PIN.
If set command is executed when PIN is not requested, +CME ERROR: <err> is
returned.
The read command returns a string indicating whether a password is required or not.
The test command returns "OK".
Note:
Verifying PIN or PUK while a call or other services are ongoing may cause the call or services to
be terminated.
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
5.2.3 Parameter Description
<pin>, <newpin>: string type values; must be enclosed in quotation marks. The
character allowed in <pin> and <newpin> must range from '0' to '9'.
<code>: string type, without quotation marks.
READY
MT is not pending for any password.
SIM PIN
MT is waiting for UICC/SIM PIN to be given.
SIM PUK
MT is waiting for UICC/SIM PUK to be given to unblock the blocked
SIM PIN.
SIM PIN2
MT is waiting for SIM PIN2 to be given.
SIM PUK2
MT is waiting for UICC/SIM PUK2 to be given to unblock the blocked
SIM PIN2. (not supported currently)
PH-NET PIN
MT is waiting for network personalization password to be given.
(AT&T customization)
PH-NET
PUK
MT is not allowed network personalization password verification.
(AT&T customization)
5.2.4 Property Description
Saving upon Power-off
PIN
N
N
5.2.5 Example
Run:
AT+CPIN?
Response:
+CPIN: SIM PIN
OK
Run:
AT+CPIN="1234"
Response:
OK
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
5.3 AT+CPBS–Select Phonebook Memory Storage
5.3.1 Command Syntax
Set command
AT+CPBS=<storage>[,<reserved>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CPBS?
Possible Response(s)
<CR><LF>+CPBS:
<storage>[,<used>,<total>]<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CPBS=?
Possible Response(s)
<CR><LF>+CPBS: (list of supported
<storage>s)<CR><LF><CR><LF>OK<CR><LF>
5.3.2 Interface Description
The set command selects phonebook memory storage <storage>, which is used by
other phonebook commands. After the MT is restarted, the value of <storage> is
restored to its default value "SM".
The read command returns currently selected memory and, optionally, the number of
used locations and total number of locations in the memory.
The test command returns supported phonebook storages.
5.3.3 Parameter Description
<storage>: phonebook storage type (currently support "SM" and "ON").
"FD"
SIM/USIM fixdialing-phonebook
"LD"
SIM/UICC last-dialing phonebook (LD phonebook can't be deleted.)
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
"ON"
SIM (or MT) own numbers (MSISDNs) list (reading of this storage may
be available through +CNUM also.)
"SM"
SIM/UICC phonebook (default value)
"BL"
Blacklist phonebook (delete only)
"EC"
SIM emergency-call-codes phonebook (read only)
"AP"
Selected application phonebook
"BN"
SIM barred-dialing-number phonebook (only valid with PIN2)
"SN"
SIM service-dialing-number phonebook
<reserved>: reserved.
<used>: an integer type value indicating the number of used locations in selected
memory.
<total>: an integer type value indicating the total number of locations in selected
memory.
5.3.4 Property Description
Saving upon Power-off
PIN
N
Y
5.3.5 Example
Run:
AT+CPBS?
Response:
+CPBS: "SM",250,250
OK
Run:
AT+CPBS="ON"
Response:
OK
Run:
AT+CPBS=?
Response:
+CPBS: ("SM","ON")
OK
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
5.4 AT+CPBR–Read Phonebook Entries
5.4.1 Command Syntax
Set command
AT+CPBR=<index1>[,<index2>]
Possible Response(s)
<CR><LF>[+CPBR:
<index1>,<number>,<type>,<text>[,<hidden>][[...]<CR><LF>+CPBR:
<index2>,<number>,<type>,<text>[,<hidden>]]]<CR><LF><CR><LF>OK
<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CPBR=?
Possible Response(s)
<CR><LF>+CPBR: (list of supported
<index>s),[<nlength>],[<tlength>]<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
5.4.2 Interface Description
The set command returns phonebook entries in location number range <index1>,
<index2> from the currently selected phonebook memory storage. The values of
<index2> must be greater than the value of <index1>.
If <index2> is left out, only the phonebook entry at location <index1> is returned.
The test command returns the location range supported by the current storage and
the maximum lengths of the <number> and <text> fields.
5.4.3 Parameter Description
<index1>, <index2>, <index>: integer type values that indicate the locations in
the phonebook memory. The values of <index1> and <index2> must be smaller
than or equal to the value of <total> returned in the response to the AT+CPBS?
command; and the values of <index2> must be greater than the value of <index1>.
<number>: string type phone number of format <type>.(allowed characters are
'0'–'9', '#', '*', '+', '(', ')', and '-'.) '(', ')', and '-' in a phone number will be ignored. '+' is
only allowed in the beginning of a phone number.
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
<type>: type of address octet in integer format (refer GSM 04.08 subclause
10.5.4.7) ; default value is 145 when dialing string includes international access code
character '+', otherwise 129.
Notes:

Set command
If <number> starts with the plus sign (+), the value of <type> is 145. If <number> does not
start with the plus sign (+), the value of <type> is specified by the set command.
If <number> does not start with the plus sign (+) and <type> is not specified in the set
command, the value of <type> is 129.

Test command
If the value of <type> is 145, the plus sign (+) is added before <number>. If the value of
<type> is not 145, the plus sign (+) is not added before <number>.
<text>: string type field of maximum length <tlength>; character set as specified
in section 2.7 AT+CSCS–Set the TE Character Set.
<tlength>: an integer type value indicating the maximum length of field <text>.
<nlength>: an integer type value indicating the maximum length of field <number>.
<hidden>: indicates whether the entry is hidden or not.
0
Phonebook entry not hidden
1
Phonebook entry hidden
5.4.4 Property Description
Saving upon Power-off
PIN
NA
Y
5.4.5 Example
Run:
AT+CPBR=?
Response:
+CPBR: (1-2),80,14
OK
Run:
AT+CPBR=1
Response:
+CPBR: 1,"12513648410061025586",129,"BGTPGWDPPTNJY
X",0
OK
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AT Command Interface Specification
Mobile Termination Control and Status
Commands
5.5 AT+CPBW–Write Phonebook Entry
5.5.1 Command Syntax
Set command
AT+CPBW=[<index>][,<number>[,<type>[,<text>[,<hidden>]]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CPBW=?
Possible Response(s)
<CR><LF>+CPBW: (list of supported <index>s),[<nlength>],(list of supported
<type>s),[<tlength>]<CR><LF><CR><LF>OK<CR><LF>
5.5.2 Interface Description
The set command writes a phonebook in location number <index> in the currently
selected phonebook memory storage.

If the command contains only the <index> parameter, the phonebook at the
location specified by <index> will be deleted. If <index> is left out, but
<number> is given, the entry is written to the first free location in the phonebook.

If the phonebook supports hidden entries, <hidden> shall be specified in the
command. If no location is free, +CME ERROR: memory full is returned.
Phonebook entries can be written only when the phonebook storage type <storage>
of the selected phonebook memory storage is "SM", "FD", "LD", "ON", or "BL".

If the phonebook storage is of any other type, an error message will be returned,
indicating that the write operation is not allowed. (At present, Huawei's terminals
support only "SM" and "ON" storage types.)

If phonebook memory storage is "ON", the <hidden> parameter is not
supported.
The test command returns the location range supported by the current storage and
the maximum lengths of the <number> and <text> fields. When writing a
phonebook entry, ensure that the lengths of all fields do not exceed their maximum
lengths.
5.5.3 Parameter Description
<index>: an integer type value that indicates the locations in the phonebook memory.
The values of <index> must be smaller than or equal to the value of <total>
returned in the response to the AT+CPBS? command.
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Mobile Termination Control and Status
Commands
<number>: string type phone number of format <type>. (allowed characters are
'0'–'9', '#', '*', '+', '(', ')', and '-'.) '(', ')', and '-' in a phone number will be ignored. '+' is
only allowed in the beginning of a phone number.
<type>: type of address octet in integer format (refer GSM 04.08 subclause
10.5.4.7) ; default value is 145 when dialing string includes international access code
character '+', otherwise 129.
Notes:

Set command
If <number> starts with the plus sign (+), the value of <type> is 145. If <number> does not
start with the plus sign (+), the value of <type> is specified by the Set command.
If <number> does not start with the plus sign (+) and <type> is not specified in the Set
command, the value of <type> is 129.

Test command
If the value of <type> is 145, the plus sign (+) is added before <number>. If the value of
<type> is not 145, the plus sign (+) is not added before <number>.
<text>: string type field of maximum length <tlength>; character set as specified
in section 2.7 AT+CSCS–Set the TE Character Set.
<tlength>: an integer type value indicating the maximum length of field <text>.
<glength>: an integer type value indicating the maximum length of field <group>.
<hidden>: indicates if the entry is hidden or not.
0
Phonebook entry not hidden
1
Phonebook entry hidden
5.5.4 Property Description
Saving upon Power-off
PIN
NA
Y
5.5.5 Example
Run:
AT+CPBW=?
Response:
+CPBW: (1-250),80,(128-255),14
OK
Run:
AT+CPBW=1,"13903711757",129,"MyNumber"
Response:
OK
Run:
AT+CPBR=1
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Mobile Termination Control and Status
Commands
+CPBR: 1,"13903711757",129,"MyNumber",0
Response:
OK
5.6 AT+CRSM–Restrict SIM Access
5.6.1 Command Syntax
Set command
AT+CRSM=<command>[,<fileid>[,<P1>,<P2>,<P3>[,<data>]]]
Possible Response(s)
<CR><LF>+CRSM:
<sw1>,<sw2>[,<response>]<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CRSM=?
Possible Response(s)
<CR><LF>OK<CR><LF>
5.6.2 Interface Description
Using this command, TE applications have limited access to the SIM card.
The set command accesses the SIM card through restricted permissions.
The test command returns "OK".
5.6.3 Parameter Description
<command>: command passed on by the MT to the SIM.
176
READ BINARY
178
READ RECORD
192
GET RESPONSE
214
UPDATE BINARY
220
UPDATE RECORD
242
STATUS
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Mobile Termination Control and Status
Commands
<fileid>: integer type; identifier of an EF file on SIM; mandatory for every command
except STATUS.
<P1>, <P2>, <P3>: these parameters are mandatory for every command, except GET
RESPONSE and STATUS. The values are described in GSM 51.011.
<data>: information in hexadecimal format
<sw1>, <sw2>: information from the SIM about the execution of the actual command.
<response>: response of a successful completion of the command previously issued.
For UPDATE BINARY and UPDATE RECORD, no response is returned.
5.6.4 Property Description
Saving upon Power-off
PIN
NA
Y
5.6.5 Example
Run:
AT+CRSM=192,28483
Response:
+CRSM: 144,0,000000026F43040011F05501020000
OK
Run:
AT+CRSM=176,12258,0,0,10
Response:
+CRSM: 144,0,980000000000000000F3
OK
5.7 AT+CSQ–Query the Signal Quality
5.7.1 Command Syntax
Execution command
AT+CSQ
Possible Response(s)
<CR><LF>+CSQ: <rssi>,<ber><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CSQ=?
Possible Response(s)
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Mobile Termination Control and Status
Commands
<CR><LF>+CSQ: (list of supported <rssi>s),(list of supported
<ber>s)<CR><LF><CR><LF>OK<CR><LF>
5.7.2 Interface Description
The execution command returns received signal strength indication <rssi> and
channel bit error rate <ber> from the MS.
The test command returns supported RSSI and BER values.
5.7.3 Parameter Description
<rssi>: received signal strength indication.
Network
<rssi>
GSM or UTRAN Cell Signal
Strength
GSM & WCDMA
0
≤ –113 dBm
1
–111 dBm
2–30
–109 dBm to –53 dBm
31
≥ –51 dBm
99
Unknown or undetectable
100
≤ –116 dBm
101
–115 dBm
102–191
–114 dBm to –26 dBm
191
≥ –25 dBm
199
Unknown or undetectable
TD-SCDMA
<ber>: bit error rate.
0...7
As RXQUAL values in the table in 3GPP TS 45.008 subclause 8.2.4.
(AT&T customization)
99
Not known or not detectable
5.7.4 Property Description
Saving upon Power-off
PIN
NA
Y
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Mobile Termination Control and Status
Commands
5.7.5 Example
Run:
AT+CSQ
Response:
+CSQ: 19,1
OK
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AT Command Interface Specification
6
Mobile Termination Errors
Mobile Termination Errors
6.1 AT+CMEE–Report Mobile Termination Error
6.1.1 Command Syntax
Set command
AT+CMEE=<n>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Read command
AT+CMEE?
Possible Response(s)
<CR><LF>+CMEE: <n><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CMEE=?
Possible Response(s)
<CR><LF>+CMEE: (list of supported <n>s)<CR><LF><CR><LF>OK<CR><LF>
6.1.2 Interface Description
The set command disables or enables the use of result code +CME ERROR: <err> as
an indication of an error relating to the functionality of the MT. When enabled, MT
related errors cause the +CME ERROR: <err> final result code instead of the regular
ERROR final result code. Regular ERROR is returned when the error is not MT-related.
The read command queries the current format of the error result code.
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Mobile Termination Errors
The test command returns supported values of <n>.
6.1.3 Parameter Description
<n>: an integer type value indicating the format of the error result code. If <n> is not
specified, it is equivalent to set <n> to 0.
0
Disable the +CME ERROR: <err> result code and use ERROR instead (default
value)
1
Enable the +CME ERROR: <err> result code and use numeric <err> values
2
Enable the +CME ERROR: <err> result code and use verbose <err> values
<err>: see section CME Error List.
6.1.4 Property Description
Saving upon Power-off
PIN
N
N
6.1.5 Example

Example 1:
Run:
AT+CMEE?
Response:
+CMEE: 2
OK

Example 2:
Run:
AT+CMEE=1
Response:
OK

Example 3:
Run:
AT+CMEE=?
Response:
+CMEE: (0,1,2)
OK
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AT Command Interface Specification
7
Commands for UMTS Packet Domain
Commands for UMTS Packet Domain
7.1 AT+CGDCONT–Define PDP Context
See the AT+CGDCONT command described in 3GPP TS 27.007. The following
description is for reference only. Observe the 3GPP specifications if the following
description conflicts with the 3GPP specifications.
7.1.1 Command Syntax
Set command
AT+CGDCONT=<cid>[,<PDP_type>[,<APN>[,<PDP_addr>[,<d_comp>[,<h_c
omp>]]]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CGDCONT?
Possible Response(s)
<CR><LF>+CGDCONT: <cid>,<PDP_type>,<APN>,<PDP_addr>,<d_comp>,
<h_comp>[<CR><LF>+CGDCONT: <cid>,<PDP_type>,<APN>,<PDP_addr>,
<d_comp>,<h_comp><CR><LF>[...]]<CR><LF>OK<CR><LF>
Test command
AT+CGDCONT=?
Possible Response(s)
<CR><LF>+CGDCONT: (range of supported <cid>s),<PDP_type>,,,(list of
supported <d_comp>s),(list of supported
<h_comp>s)<CR><LF><CR><LF>OK<CR><LF>
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Commands for UMTS Packet Domain
7.1.2 Interface Description
The MT locally saves a group of PDP contexts with <cid> as the index. Each record
of the saved setting environment contains a group of PDP-related parameters.
The set command saves the group of PDP-related parameters in the PDP contexts
that use <cid> as the index. Each PDP context is initially undefined. After the
command saves a group of parameters in a PDP context, the PDP context is defined.
The number of defined PDP contexts that can be saved at the same time is
determined by the value range of <cid>.
A special form of the set command, AT+CGDCONT=<cid> causes the values for
context number <cid> to become undefined.
The read command returns the current settings for each defined context displayed in
a separate line.
Note:
If all PDP contexts are undefined, the default parameters of PDP context are returned. In which,
the default value of <cid> is 1, and it will be saved when MT is powered off.
The test command returns all the values supported for each context. In the response,
the <PDP_type> value supported by the MT is taken as the index and displayed in a
separate line. Each context has a confirmed <PDP_type> value and includes the
supported value ranges of other parameters with the specified <PDP_type> value.
Each context is displayed in a separate line.
7.1.3 Parameter Description
<cid>:
1–11
Index of a PDP context. Other PDP-related commands can use this
index to use the defined PDP context.
<PDP_type>: a string parameter that specifies the type of packet data protocol.
IP
Internet Protocol
<APN>: a string parameter that specifies the access point for accessing the GGSN or
the external packet data network. The maximum length of <APN> is 100 characters. If
the value is null or omitted, the subscription value will be requested.
<PDP_address>: a string parameter that identifies the MT in the IPv4 address space
applicable to the PDP.
<d_comp>: a numeric parameter that controls PDP data compression.
0
Off
Note:
It is not supported to set <d_comp> on.
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Commands for UMTS Packet Domain
If <d_comp> is not specified in the command, it is equivalent to <d_comp>=0.
<h_comp>: a numeric parameter that controls PDP header compression.
0
Off
1
On
2
RFC1144 (applicable for SNDCP only)
3
RFC2507
4
RFC3095 (applicable for PDCP only)
If <h_comp> is not specified in the command, it is equivalent to <h_comp>=0.
7.1.4 Property Description
Saving upon Power-off
PIN
Y
Y
7.1.5 Example

Step 1
Run:
AT+CGDCONT=?
Response:
+CGDCONT: (1-11),"IP",,,(0),(0,
Query the supported
values of the
parameters
1,2,3,4)
OK

Step 2
Run:
AT+CGDCONT?
Response:
+CGDCONT: 1,"IP","vcol.com","0.
0.0.0",0,0
OK

Step 3
Run:
AT+CGDCONT=3,"IP","abc.com","1
0.111.145.233",0,1
Response:
OK

Save one PDP context
to the MT and set
<cid>=3
Step 4
Run:
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The MT saves one
PDP context, and the
<cid> value of this
context is 1.
AT+CGDCONT?
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Commands for UMTS Packet Domain
+CGDCONT: 1,"IP","vcol.com","0.
Response:
0.0.0",0,0
+CGDCONT: 3,"IP","abc.com","10.
The PDP context has
been successfully
saved to the MT at the
previous step.
111.145.233",0,1
OK

Step 5
Run:
AT+CGDCONT=3
Response:
OK

Remove the PDP
context with <cid>=3
Step 6
Run:
AT+CGDCONT?
Response:
+CGDCONT: 1,"IP","vcol.com","0.
0.0.0",0,0
The PDP context with
<cid>=3 has been
removed.
OK
7.2 AT+CGACT–Activate or Deactivate PDP Context
7.2.1 Command Syntax
Set command
AT+CGACT=[<state>[,<cid>[,<cid>[…]]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
<CR><LF>+CME ERROR<CR><LF>
Read command
AT+CGACT?
Possible Response(s)
<CR><LF>+CGACT: <cid>,<state><CR><LF>[<CR><LF>+CGACT:
<cid>,<state><CR><LF>[...]]<CR><LF>OK<CR><LF>
Test command
AT+CGACT=?
Possible Response(s)
<CR><LF>+CGACT: (list of supported
<state>s)<CR><LF><CR><LF>OK<CR><LF>
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Commands for UMTS Packet Domain
7.2.2 Interface Description
The set command activates or deactivates the specified PDP context(s). If <cid> is
not specified, all PDP contexts are activated or deactivated.
The read command returns the defined PDP Activation state.
The test command returns the supported values of <state>.
7.2.3 Parameter Description
<state>: indicates the state of PDP context activation.
0
Deactivated
1
Activated
<cid>: the index of a PDP context; specifies a particular PDP context definition.
7.2.4 Property Description
Saving upon Power-off
PIN
NA
Y
7.2.5 Example
Run:
AT+CGACT=1,1
Response:
OK
Run:
AT+CGACT=0,1
Response:
OK
Response:
AT+CGACT?
Response:
+CGACT: 1,0
Activate PDP contexts
Deactivate PDP contexts
Query the state of PDP context
activation
OK
7.3 AT+CGATT–Attach or Detach PS Domain
7.3.1 Command Syntax
Set command
AT+CGATT=[<state>]
Possible Response(s)
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Commands for UMTS Packet Domain
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF> or
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CGATT?
Possible Response(s)
<CR><LF>+CGATT: <state><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CGATT=?
Possible Response(s)
<CR><LF>+CGATT: (list of supported
<state>s)<CR><LF><CR><LF>OK<CR><LF>
7.3.2 Interface Description
The set command attaches the MT to, or detaches the MT from, the packet-switched
(PS) domain service. After the command has been completed, the MT remains in
V.25ter command state. If the MT is already in the requested state, the command is
ignored and OK is returned. If the requested state cannot be achieved, an ERROR or
+CME ERROR response is returned. Extended error responses are enabled by the
AT+CMEE command.
Any active PDP contexts will be automatically deactivated when the attachment state
changes to detached.
The read command returns the current GPRS service state.
The test command requests information about the supported PS domain service
states.
7.3.3 Parameter Description
<state>: indicates the state of PS domain service.
0
Detached
1
Attached
Other values are reserved and will result in an ERROR response to the set command.
7.3.4 Property Description
Saving upon Power-off
PIN
NA
Y
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Commands for UMTS Packet Domain
7.3.5 Example
Run:
AT+CGATT?
Response:
+CGATT: 1
OK
Run:
AT+CGATT=0
Response:
OK
7.4 AT+CGREG–PS Domain Registration Status
7.4.1 Command Syntax
Set command
AT+CGREG=[<n>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CGREG?
Possible Response(s)
<CR><LF>+CGREG:
<n>,<stat>[,<lac>,<ci>[,<AcT>,<rac>]]<CR><LF><CR><LF>OK<CR><LF
>
Test command
AT+CGREG=?
Possible Response(s)
<CR><LF>+CGREG: (list of supported <n>s)<CR><LF><CR><LF>OK<CR><LF>
7.4.2 Interface Description
The set command controls the presentation of an unsolicited result code +CGREG.
when <n>=1 and there is a change in the MT's network registration status, +CGREG:
<stat> is presented.
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Commands for UMTS Packet Domain
When <n>=2 and there is a change in the network cell, +CGREG:
<stat>[,<lac>,<ci>[,<AcT>,<rac>]] is presented. In this case <AcT>, <lac>,
<rac> and <ci> are sent only if available.
The read command returns the current registration state <stat>. Location
information elements <lac> and <ci> are returned only when <n>=2.
The test command returns the <n> values supported by the UE.
7.4.3 Parameter Description
<n>:
0
Disable unsolicited result code +CGREG. (default value)
1
Enable unsolicited result code +CGREG: <stat>.
2
Enable network registration and location information unsolicited result
code +CGREG: <stat>[,<lac>,<ci>[,<AcT>,<rac>]].
<stat>:
0
Not registered, MT is not currently searching for a new operator to
register with.
1
Registered, home network
2
Not registered, but MT is currently searching a new operator to register
with.
3
Registration denied
4
Unknown
5
Registered, roaming
<lac>: string type; two byte location area code or tracking area code in hexadecimal
format (e.g. "00C3" equals 195 in decimal, and means two bytes of "0x00" and
"0xC3").
<ci>: string type; four byte GERAN/UTRAN/E-UTRAN cell ID in hexadecimal format.
<AcT>: access to technology
0
GSM
1
GSM Compact (not supported currently)
2
UTRAN
3
GSM w/EGPRS (see Note 1)
4
UTRAN w/HSDPA (see Note 2)
5
UTRAN w/HSUPA (see Note 2)
6
UTRAN w/HSDPA and HSUPA (see Note 2)
7
E-UTRAN (not supported currently)
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Commands for UMTS Packet Domain
Notes:
1. 3GPP TS 44.060 specifies the system information messages which give the information
about whether the serving cell supports EGPRS.
2. 3GPP TS 25.331 specifies the system information blocks which give the information about
whether the serving cell supports HSDPA or HSUPA.
<rac>: routing area code; two hexadecimal characters. (not supported currently,
always returns "00").
7.4.4 Property Description
Saving upon Power-off
PIN
N
Y
7.4.5 Example
Run:
AT+CGREG?
Response:
+CGREG: 0,1
OK
Run:
AT+CGREG=?
Response:
+CGREG: (0-2)
OK
Run:
AT+CGREG?
Response:
+CGREG: 2,1,"2513","000E01F4",6,"00"
OK
7.5 AT+CGSMS–SMS Bearer Domain
7.5.1 Command Syntax
Set command
AT+CGSMS=<service>
Possible Response(s)
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Commands for UMTS Packet Domain
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+CGSMS?
Possible Response(s)
<CR><LF>+CGSMS: <service><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CGSMS=?
Possible Response(s)
<CR><LF>+CGSMS: (list of supported
<service>s)<CR><LF><CR><LF>OK<CR><LF>
7.5.2 Interface Description
The set command sets the SMS bear domain, that is, the selection of the CS/PS
domain.
The read command returns the current SMS bearer domain.
The test command returns the supported parameter values.
7.5.3 Parameter Description
<service>:
0
PS domain
1
CS domain (default value)
2
PS domain preferred
3
CS domain preferred
7.5.4 Property Description
Saving upon Power-off
PIN
N
N
7.5.5 Example
Run:
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AT+CGSMS?
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Response:
Commands for UMTS Packet Domain
+CGSMS: 1
OK
Run:
AT+CGSMS=?
Response:
+CGSMS: (0-3)
OK
Run:
AT+CGSMS=2
Response:
OK
Run:
AT+CGSMS?
Response:
+CGSMS: 2
OK
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AT Command Interface Specification
8
PDU Mode Commands for SMS
PDU Mode Commands for SMS
8.1 AT+CSMS–Select Message Service
8.1.1 Command Syntax
Set command
AT+CSMS=<service>
Possible Response(s)
<CR><LF>+CSMS: <mt>,<mo>,<bm><CR><LF><CR><LF>OK<CR><LF>
Read command
AT+CSMS?
Possible Response(s)
<CR><LF>+CSMS:
<service>,<mt>,<mo>,<bm><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CSMS=?
Possible Response(s)
<CR><LF>+CSMS: (list of supported
<service>s)<CR><LF><CR><LF>OK<CR><LF>
8.1.2 Interface Description
The set command selects messaging service <service>. It returns the types of
messages supported by the ME: <mt> for mobile terminated messages, <mo> for
mobile originated messages and <bm> for broadcast type messages.
The read command returns supported message types along the current service
setting.
The test command returns a list of all services supported by the ME.
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PDU Mode Commands for SMS
8.1.3 Parameter Description
<service>: messaging service type.
0
3GPP TS 23.040, 3GPP TS 23.041 (Messaging AT command syntax is
compatible with GSM 07.05 Phase 2.) (default value)
1
3GPP TS 23.040, 3GPP TS 23.041 (Messaging AT command syntax is
compatible with GSM 07.05 Phase 2+. Note that <service>=1 is
required for +CNMA.)
<mt>, <mo>, <bm>: integer type values, which respectively indicate whether the MT
supports mobile terminated messages, mobile originated messages and broadcast
type messages.
0
Type not supported
1
Type supported
8.1.4 Property Description
Saving upon Power-off
PIN
N
N
8.1.5 Example
Run:
AT+CSMS=?
Response:
+CSMS: (0-1)
OK
Run:
AT+CSMS?
Response:
+CSMS: 0,1,1,1
OK
Run:
AT+CSMS=1
Response:
+CSMS: 1,1,1
OK
Run:
AT+CSMS?
Response:
+CSMS: 1,1,1,1
OK
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PDU Mode Commands for SMS
8.2 AT+CPMS–Select Message Storage
8.2.1 Command Syntax
Set command
AT+CPMS=<mem1>[,<mem2>[,<mem3>]]
Possible Response(s)
<CR><LF>+CPMS:
<used1>,<total1>,<used2>,<total2>,<used3>,<total3><CR><LF><C
R><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Read command
AT+CPMS?
Possible Response(s)
<CR><LF>+CPMS:
<mem1>,<used1>,<total1>,<mem2>,<used2>,<total2>,<mem3>,<used3
>,<total3><CR><LF><CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Test command
AT+CPMS=?
Possible Response(s)
<CR><LF>+CPMS: (list of supported <mem1>s),(list of supported
<mem2>s),(list of supported <mem3>s)<CR><LF><CR><LF>OK<CR><LF>
8.2.2 Interface Description
The set command selects memory storages <mem1>, <mem2> and <mem3> to be
used for reading, writing, etc. The set command also returns the usage of the
currently selected memory storages.
The read command returns the names and the usage of the selected memory
storages.
The test command returns lists of memory storages supported by the MT.
8.2.3 Parameter Description
<mem1>: a string type value that specifies the memory storage used for reading and
deleting messages. Available values are:
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"SM"
(U)SIM card (default value)
"BM"
Broadcast message storage
PDU Mode Commands for SMS
<mem2>: a string type value that specifies the memory storage used for writing and
sending messages. Available value is:
"SM"
(U)SIM card
<mem3>: a string type value that specifies the memory storage used for receiving
messages. Available values of this field are the same as those of the <mem1> field.
The default value is the same with <mem1>.
<total1>: an integer type value that indicates the capacity of <mem1> for storing
messages.
<total2>: an integer type value that indicates the capacity of <mem2> for storing
messages.
<total3>: an integer type value that indicates the capacity of <mem3> for storing
messages.
<used1>: an integer type value that indicates the number of messages currently
saved in the memory storage specified by <mem1>.
<used2>: an integer type value that indicates the number of messages currently
saved in the memory storage specified by <mem2>.
<used3>: an integer type value that indicates the number of messages currently
saved in the memory storage specified by <mem3>.
8.2.4 Property Description
Saving upon Power-off
PIN
N
Y
8.2.5 Example
Run:
AT+CPMS=?
Response:
+CPMS: ("SM","BM"),("SM"),("SM","BM")
OK
Run:
AT+CPMS="SM"
Response:
+CPMS: 6,50,6,50,6,50
OK
Run:
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PDU Mode Commands for SMS
+CPMS: "SM",6,50,"SM",6,50,"SM",6,50
Response:
OK
8.3 AT+CMGF–Set Message Format
8.3.1 Command Syntax
Set command
AT+CMGF=[<mode>]
Possible Response(s)
<CR><LF>OK<CR><LF>
Read command
AT+CMGF?
Possible Response(s)
<CR><LF>+CMGF: <mode><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CMGF=?
Possible Response(s)
<CR><LF>+CMGF: (list of supported
<mode>s)<CR><LF><CR><LF>OK<CR><LF>
8.3.2 Interface Description
The set command sets the message format. The format is specified by <mode>, which
can be either PDU mode or TEXT mode. For details about the message format in
PDU mode, see section 8.9 AT+CMGS–Send Short Message.
The read command returns the currently selected mode.
The test command returns supported values of <mode>.
8.3.3 Parameter Description
<mode>:
0
PDU mode (default value)
1
TEXT mode (the MU736 module only supports PDU mode)
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PDU Mode Commands for SMS
8.3.4 Property Description
Saving upon Power-off
PIN
N
N
8.3.5 Example
Run:
AT+CMGF=0
Response:
OK
Run:
AT+CMGF?
Response:
+CMGF: 0
OK
8.4 AT+CSCA–Service Center Address
8.4.1 Command Syntax
Set command
AT+CSCA=<sca>[,<tosca>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Read command
AT+CSCA?
Possible Response(s)
<CR><LF>+CSCA: <sca>,<tosca><CR><LF><CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Test command
AT+CSCA=?
Possible Response(s)
<CR><LF>OK<CR><LF>
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PDU Mode Commands for SMS
8.4.2 Interface Description
The set command sets the SMSC address. For SMS messages in PDU mode, this
command can be used only when the <sc_len> parameter in the PDU is set to 0 (for
details about the PDU format, see section 8.9 AT+CMGS–Send Short Message.
The read command queries the current values of the SMSC address.
The test command returns "OK".
8.4.3 Parameter Description
<sca>: a string type value that specifies the SMSC address. '*', '#', '+' and '0'–'9' are
allowed in the SMSC address. The maximum length of the SMSC address is 20
characters (excluding '+').
<tosca>: an integer type value that specifies the address type. If the value of
<tosca> is 145, the address is an international phone number. For details about the
values of <tosca>, see the value definitions of <type_addr> in 8.9
AT+CMGS–Send Short Message.
Notes:

Set command
If <sca> starts with the plus sign (+), the value of <tosca> is 145. If <sca> does not start with
the plus sign (+), the value of <tosca> is specified by the Set command.
If <sca> does not start with the plus sign (+) and <tosca> is not specified in the Set command,
the value of <tosca> is 129.

Read command
If the value of <tosca> is 145, the plus sign (+) is added before <sca>. If the value of
<tosca> is not 145, the plus sign (+) is not added before <sca>.
<sca> is stored in the EFsmsp file on the SIM card, so no default value is defined for
<sca>. The value of <sca> contained in the response to the AT+CSCA? command is
the value stored on the SIM card.
8.4.4 Property Description
Saving upon Power-off
PIN
Y
Y
8.4.5 Example
Run:
AT+CSCA="+8613800688509",145
Response:
OK
Run:
AT+CSCA?
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PDU Mode Commands for SMS
+CSCA: "+8613800688509",145
Response:
OK
8.5 AT+CNMI–Indicate New Message to TE
8.5.1 Command Syntax
Set command
AT+CNMI=[<mode>[,<mt>[,<bm>[,<ds>[,<bfr>]]]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Read command
AT+CNMI?
Possible Response(s)
<CR><LF>+CNMI:
<mode>,<mt>,<bm>,<ds>,<bfr><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+CNMI=?
Possible Response(s)
<CR><LF>+CNMI: (list of supported <mode>s),(list of supported <mt>s),(list
of supported <bm>s),(list of supported <ds>s),(list of supported
<bfr>s)<CR><LF><CR><LF>OK<CR><LF>
8.5.2 Interface Description
The set command selects the procedure of receiving new messages from the
network.
The read command queries the current parameter values.
The test command returns the supported parameter values.
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PDU Mode Commands for SMS
Notes:

The values set in this command are reset to 0 after the MT is restarted. In this case, no
messages are sent to the TE. AT+CNMI=0,0,0,0,0 is not recommended.

AT+CNMI is equivalent to AT+CNMI=0,0,0,0,0.
8.5.3 Parameter Description
<mode>: controls how new message indications are sent.
0
Buffer SMS-DELIVER indications in the ME. If the ME buffer is full, then
the oldest indication is overwritten by the latest indication. (default
value)
1
Directly send SMS-DELIVER indications to the TE.When a
SMS-DELIVER indication cannot be sent (for example, when in online
data mode), it will be discarded.
2
Directly send SMS-DELIVER indications and message status reports to
the TE. When a SMS-DELIVER indication and message status report
cannot be sent (for example, when in online data mode), they are
buffered in the ME and sent to the TE when they can be sent.
Note:
SMS-DELIVER indications are buffered in the MT's volatile memory. If the MT is powered off
before the indications are sent, messages may be lost. Therefore, when <mode> is set to 0 or 2,
messages cannot be set to be directly sent to the TE (that is, <mt> cannot be set to 2 or 3).
<mt>: set the rules for saving messages and sending SMS-DELIVER indications.
0
No SMS-DELIVER indications are routed to the TE. (default value)
1
Stores SMS-DELIVER indications on the MT and sends storage
location indication to the TE.
+CMTI: <mem>,<index>
2
Does not store SMS-DELIVER indications on the MT but directly sends
them to the TE.
If PDU mode enabled:
+CMT: [<reserved>],<length><CR><LF><pdu>
3
Stores SMS-DELIVER indications on the MT, but does not send
SMS-DELIVER indications to the TE.
The following figure illustrates the interaction between the TE and the MT for the
previous three modes.
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PDU Mode Commands for SMS
The following table describes the <mt> values and the corresponding indications.
<mt>
no class or
class 1
class 0 or message
waiting indication
group (discard)
class 2 or message
waiting indication
group (store)
class 3
1
+CMTI
[+CMTI]
+CMTI
+CMTI
2
+CMT &
+CNMA
+CMT [& +CNMA]
+CMTI
+CMT & +CNMA
3
+CMTI
[+CMTI]
+CMTI
+CMT & +CNMA
0
Notes:

The SMS class is defined by the TP-DCS domain of the SMS. For details, see the
description of <DCS> in 8.9 AT+CMGS–Send Short Message.

"+CMT & +CNMA" indicates that the TE is required to send the confirmation (+CNMA).
<bm>: set the rules for saving CBMs and sending CBM indications.
0
No CBM indications are routed to the TE. (default value)
1
If CBM is stored into ME/TA, indication of the memory location is routed
to the TE using unsolicited result code:
+CBMI: <mem>,<index>
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2
PDU Mode Commands for SMS
New CBMs are routed directly to the TE using unsolicited result code:
If PDU mode enabled:
+CBM: <length><CR><LF><pdu>
3
Class 3 CBMs are routed directly to TE using unsolicited result codes
defined in <bm>=2. If CBM storage is supported, messages of other
classes result in indication as defined in <bm>=1.
If ME supports data coding groups which define special routing also for messages
other than class 3 (for example, (U)SIM specific messages), ME may choose not to
route messages of such data coding schemes into TE (indication of a stored CBM
may be given as defined in <bm>=1).
Table 8-1 Parameters of <bm>
<bm>
Receiving procedure for different message data coding schemes (refer
3GPP TS 23.038)
0
All schemes: as in 3GPP TS 23.038; if CBM storage is supported, store
message to "BM" (or some manufacturer or data coding scheme specific
memory).
1
All schemes: as <bm>=0 but send indication if message stored
successfully.
2
All schemes: route message to TE unless ME has detected a special
routing to somewhere else (for example, to (U)SIM; an indication may be
sent if message stored successfully).
3
All schemes: as in 3GPP TS 23.038; if CBM storage is supported, store
message to "BM" (or some manufacturer or data coding scheme specific
memory).
<ds>: set whether to send message status reports.
0
Do not send message status reports. (default value)
1
Do not store message status reports to the MT and directly send the
reports to the TE.
If PDU mode enabled:
+CDS: <length><CR><LF><pdu>
2
Store message status reports to the MT and send the storage location
to the TE using +CDSI.
+CDSI: <mem>,<index>
<bfr>: specifies how the buffer is handled after the MT switches from <mode>=0 to
<mode>=1 or <mode>=2.
0
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After switching from <mode>=0 to <mode>=1 or <mode>=2, the MT
sends all the unsolicited result code in its buffer to the TE. (default
value)
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1
PDU Mode Commands for SMS
After switching from <mode>=0 to <mode>=1 or <mode>=2, the MT
clears the buffer and all unsolicited result codes in the buffer are
discarded.
8.5.4 Property Description
Saving upon Power-off
PIN
N
N
8.5.5 Example
1.
AT+CNMI=1,1,0,1,0
Class 1 messages are stored to the MT, and then storage locations are reported
(+CMTI: "ME",1). Message status reports are directly sent (+CDS:).
If SMS-DELIVER indications cannot be sent (for example, when in online data
state), they will be discarded.
2.
AT+CNMI=1,1,0,2,0
Class 1 messages are stored to the MS, and then storage locations are reported
(+CMTI: "ME",1). Message status reports are stored to the MS, and then
storage locations are reported (+CDSI: "ME",2).
If SMS-DELIVER indications cannot be sent (for example, when in online data
state), they will be discarded.(The SMS messages and SMS-DELIVER
indications are stored in the MS and can be read using the AT+CMGL command;
however, the TE cannot receive the indications.)
3.
Other commonly-used settings include:
AT+CNMI=1,1,0,0,0: store the messages, and then send the storage locations
to the TE; do not send the message status reports.
AT+CNMI=1,2,0,0,0: do not store the messages but directly send them to the
TE; do not send the message status reports.
8.6 AT+CMGD–Delete Message
8.6.1 Command Syntax
Set command
AT+CMGD=<index>[,<delflag>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
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PDU Mode Commands for SMS
Test command
AT+CMGD=?
Possible Response(s)
<CR><LF>+CMGD: (list of supported <index>s)[,(list of supported <delflag>s
)]<CR><LF><CR><LF>OK<CR><LF>
8.6.2 Interface Description
The set command deletes the message at location <index> in the storage <mem1>. If
the deletion fails, +CMS ERROR: <err> is returned.
For details about <mem1>, see section 8.2 AT+CPMS–Select Message Storage. If
<delflag> is set to a value other than 0, the MT ignores <index> and executes the
command as specified by <delflag>.
The test command returns storage locations that have messages and supported
<deflag> values.
8.6.3 Parameter Description
<index>: the storage location where the message is stored.
<delflag>:
0
Delete the message stored at the location specified by <index>.
(default value)
1
Delete all the read messages saved in the preferred storage, and keep
the unread, sent, and unsent ones.
2
Delete all the read and sent messages saved in the preferred storage,
and keep the unread and unsent ones.
3
Delete all the read, sent, and unsent messages saved in the preferred
storage, and keep the unread ones.
4
Delete all messages saved in the preferred storage, including the
unread ones.
8.6.4 Property Description
Saving upon Power-off
PIN
NA
Y
8.6.5 Example
Run:
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AT+CMGD=?
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PDU Mode Commands for SMS
+CMGD: (1,2,3,4,5,6),(0,1,2,3,4)
Response:
OK
Run:
AT+CMGD=4
Response:
OK
8.7 AT+CMGL–List Messages
8.7.1 Command Syntax
Set command
AT+CMGL[=<stat>]
Possible Response(s)
If in PDU mode and the command is executed successfully:
[<CR><LF>+CMGL:
<index>,<stat>,[<reserved>],<length><CR><LF><pdu>[<CR><LF>+CMG
L:
<index>,<stat>,[<reserved>],<length><CR><LF><pdu>[...]]<CR><LF>]<
CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Test command
AT+CMGL=?
Possible Response(s)
<CR><LF>+CMGL: (list of supported
<stat>s)<CR><LF><CR><LF>OK<CR><LF>
8.7.2 Interface Description
The set command returns messages with status value <stat> from message storage
<mem1> to the TE. If the status of the message is 'received unread', status in the
storage changes to 'received read' after the set command is executed successfully.
When <stat> is not specified, the set command is equivalent to command
AT+CMGL=0.
The test command returns a list of supported <stat> values.
8.7.3 Parameter Description
<stat>: message status; default value is 0.
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PDU Mode Commands for SMS
0
Received unread messages
1
Received read messages
2
Stored unsent messages
3
Stored sent messages
4
All messages
<index>: an integer type value that indicates the storage location of the message.
<reserved>: reserved.
<length>: an integer type value that indicates the number of bytes of TPDU data.
<pdu>: protocol data unit in the following format.
[<SCA>]
<sc_len>
<type_addr>
<numbers>
TPDU
For the definitions of <SCA>, <sc_len>, <type_addr>, <number> in the previous
table, see section 8.9 AT+CMGS–Send Short Message.
For the TPDU format of messages to be sent, see section 8.9 AT+CMGS–Send Short
Message. The TPDU format for received messages is described in the following table.
1 Oct
2
Oct~12
Oct
TP-MTI
MMS
0
0
SRI
UDHI
RP
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
OA
1
Oct
PI
D
1 Oct
7 Oct
1Oct
DCS
SCTS
UDL
1 Oct
UD
OA
<MTI>: see the definition in section 8.9 AT+CMGS–Send Short Message.
<MMS>: indicates whether there are still other messages to be sent.
0
No
1
Yes
<SRI>: indicates whether the short message entity (SME) has requested a status
report.
0
No
1
Yes
<UDHI>: see the definition in section 8.9 AT+CMGS–Send Short Message.
<RP>: see the definition in section 8.9 AT+CMGS–Send Short Message.
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PDU Mode Commands for SMS
<OA>: originating address. Its definition is the same as <sca>. There are a total of
2–12 octets. Therefore, the longest address in the <oa> field contains 20 digits.
<PID>: protocol identifier. See the definition in section 8.9 AT+CMGS–Send Short
Message.
<DCS>: use data coding scheme. See the definition in section 8.9 AT+CMGS–Send
Short Message.
<SCTS>: time stamp of the SMSC, consisting of year, month, date, hour, minute,
second and time difference. Time difference is the difference between the local time
and the Greenwich standard time.
<UDL>: user data length. See the definition in section 8.9 AT+CMGS–Send Short
Message.
<UD>: user data whose length is determined by <UDL>.
8.7.4 Property Description
Saving upon Power-off
PIN
NA
Y
8.7.5 Example
Run:
AT+CMGL=?
Response:
+CMGL: (0-4)
OK
Run:
AT+CMGL=4
Response:
+CMGL: 1,1,,24
0891683108608805F9040D91683109731147F4000031100151
64020004E139D90C
+CMGL: 2,1,,40
0891683108608805F9040E9168310973901274000031105111
5211001661FA6ADC3ECF7BA2D82C079BDD62B15BED266A00
+CMGL: 3,1,,26
0891683108608805F9040D91683109731157F7000031105111
72550006F770D97C2F03
+CMGL: 4,1,,20
0891683108608805F9040D91683109731157F7000031105111
82250000
+CMGL: 5,1,,28
0891683108608805F9040D91683109731157F7000031105111
0393000931D92C26A3C56434
+CMGL: 6,1,,30
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PDU Mode Commands for SMS
0891683108608805F9040D91683109731157F7000031105111
3373000B31D92C26A3C564B3980C
OK
8.8 AT+CMGR–Read Message
8.8.1 Command Syntax
Set command
AT+CMGR=<index>
Possible Response(s)
If in PDU mode and the command is executed successfully:
<CR><LF>+CMGR:
<stat>,[<reserved>],<length><CR><LF><pdu><CR><LF><CR><LF>OK<C
R><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Test command
AT+CMGR=?
Possible Response(s)
<CR><LF>OK<CR><LF>
8.8.2 Interface Description
The set command returns the message with location value <index> from message
storage <mem1>. If the status of the message is "received unread", status in the
storage changes to "received read" after the set command is executed successfully.
The test command returns "OK".
8.8.3 Parameter Description
<index>: an integer type value that indicates the location in the storage.
<stat>: message status.
0
Received unread messages
1
Received read messages
2
Stored unsent messages
3
Stored sent messages
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PDU Mode Commands for SMS
<reserved>: reserved.
<length>: an integer type value that indicates the number of bytes of PDU data.
<pdu>: protocol data unit. For details about the PDU format, see section 8.7.3 .
8.8.4 Property Description
Saving upon Power-off
PIN
NA
Y
8.8.5 Example
Run:
AT+CMGR=1
Response:
+CMGR: 1,,24
0891683108608805F9040D91683109731147F4000031100151
64020004E139D90C
OK
8.9 AT+CMGS–Send Short Message
8.9.1 Command Syntax
Set command
AT+CMGS=<length><CR>PDU is given<ctrl-Z/ESC>
Possible Response(s)
<CR><LF>+CMGS: <mr>[,<ackpdu>]<CR><LF><CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Test command
AT+CMGS=?
Possible Response(s)
<CR><LF>OK<CR><LF>
8.9.2 Interface Description
The set command sends a message to the network in the following procedure:
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PDU Mode Commands for SMS
First, the TE sends +CMGS=<length><CR> to the MT.
After the MT responds to the TE with <CR><LF><greater_than><space>(IRA 13,
10, 62, 32), the TE sends the PDU packets ending with <ctrl-Z>(IRA26).
The test command returns "OK".
8.9.3 Parameter Description
<length>: the number of actually sent TPDU characters/2. It is a decimal value not
greater than 178.
<mr>: message ID; a decimal number ranging from 0 to 255.
<ackpdu>: when <value> of +CSMS is 1 and supported by the network, this field will
be returned. Except that there is no <SCA>, the format of <ackpdu> is the same as
that of the PDU. This field is not supported currently.
<ctrl-Z>: indicates the end of a PDU. The characters are "0x1A".
<ESC>: cancels the sending of the message. The characters are "0x1B".
The format of a PDU is as follows: (The characters allowed in a PDU are 0–9, A–F,
and a–f. Two characters forms one octet. For example, '23'=0x23, '2a'=0x2a, all are
hexadecimal.)
[<SCA>]
<sc_len>
<type_addr>
<numbers>
TPDU
<SCA>: service center address (SCA). Its structure is illustrated in the following figure.
.
.
Address-Length
Type-of-Address
1
2
3
4
Addr.
5
Address-Value
................................
µ
.
.
<sc_len>: length of <SCA>. It is composed of two characters. It indicates the number
of characters occupied by <type_addr> and (<numbers>/2).
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PDU Mode Commands for SMS
<type_addr>: number address type; consisting of two characters in the following
format:
1
Type-of-number
Numbering-plan-identification
Values of Type-of-Number (bit 6–4) are defined as follows:
000
This value is written when the user does not know the destination
address type. In this case, the address type is determined by the
network.
001
This value is selected if the user knows that it is an international
number, or the user believes that it falls in the national range.
010
National number. No prefix or suffix is added. This value is selected
when the user sends a message to a national number.
011
A special number in this network. It is used for management or service.
The user cannot select this value.
101
GSM number using the default 7-bit encoding scheme.
110
Short number. It is not in use currently.
111
Reserved. It is not in use currently.
Values of Numbering–plan–identification (bits 3–0) are defined as follows:
0000
The number is determined by the numbering plan at the network.
0001
ISDN/telephone numbering plan.
0011
Data numbering plan. It is not in use currently.
0100
Telex numbering plan. It is not in use currently.
1000
National numbering plan. It is not in use currently.
1001
Private numbering plan. It is not in use currently.
1010
ERMES numbering plan. It is not in use currently.
Note:
bits 3–0 are valid only when bits 6–4 are 000, 001, or 010.
<numbers>: address number. One byte stores two digits. Bits 3–0 store the first digit,
and bits 7–4 store the second digit. As an example, the following figure illustrates the
encoding sequence of half bytes.
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PDU Mode Commands for SMS
n+1
Digit 2
Digit 1
n+2
Digit 4
Digit 3
n+3
1
1
1
Digit 5
1
Note:
If the number's length is an odd value, the four high-order bits of this octet is filled with 1111.
'*'
1010
'#'
1011
'a'
1100
'b'
1101
'c'
1110
For example:

If <SCA> is 13902900, then <number> is 31099200.

If the length of <SCA> is an odd value, for example, 139029001, then
<numbers> is 31099200F1.

If the number type is 'A1', then <SCA> is 05a131099200.

If the number type indicates that it is an international number 'A1', but the number
13902900 is a national number in China, it is necessary to add 86 before the
number. In this case, <SCA> is 06a16831099200.
The TPDU format is described in the following table.
1 Octet
RP
DA
PID
DCS
Bit7
Bit6
Bit5
Bit4
Bit3
VP
UDL
Bit2
Bit1
2
Oct~
12
Oct
1
1
1
1
Oct
Oct
Oct
Oct
DA
PID
DCS
VP
UDL
2
Oct~
12
Oct
UD
DA
Bit0
<MTI>: message type. Its values(Bit 1-0) are defined as follows:
00
SMS-DELIVER (in the direction SC to MT)
00
SMS-DELIVER REPORT (in the direction MT to SC)
10
SMS-STATUS-REPORT (in the direction SC to MT)
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PDU Mode Commands for SMS
10
SMS-COMMAND (in the direction MT to SC)
01
SMS-SUBMIT (in the direction MT to SC)
01
SMS-SUBMIT-REPORT (in the direction SC to MT)
11
Reserved
<RD>: indicates whether the SC needs to receive a message that is still stored in the
SC and has the MR and DA identical with those of the messages sent previously from
the same OA. Its values are defined as follows:
0
Yes
1
No
<VPF>: indicates the validity and format of the VP field. Its values(Bit 4-3) are defined
as follows:
00
The VP field is invalid.
10
The VP field is valid, and the format is "relative".
01
The VP field is valid, and the format is "enhanced".
11
The VP field is valid, and the format is "absolute".
<RP>: indicates whether the reply to a message uses the same settings as those for
the sent message. Its values are defined as follows:
0
No
1
Yes. The message reply uses the same SC number and path for
sending the message.
<UDHI>: user data header indication. Its values are defined as follows:
0
The user data segment contains message content only.
1
The user data segment contains message content and a data header.
<SRR>: status report request indication.
0
No status report is required when a message is sent successfully.
1
A status report is required when a message is sent successfully.
<MR>: message ID ranging from 0 to 255.
<DA>: destination address. Its definition is the same as <SCA>. There are a total of
2–12 octets. Therefore, the longest address in the <DA> field contains 20 digits.
<PID>: protocol identifier. Its values are defined as follows:
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PDU Mode Commands for SMS
PID
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
The values of bit 7-6 are defined as follows:
00
Allocate bits 0–5 (at present, bit 7=0 and bit 6=0).
10
Allocate bits 0 –5.
01
Reserved
11
Allocate bits 0–5 for special purpose of the SC.
The values of bit 5 are defined as follows:
0
No interworking, but SME-to-SME protocol
1
Telematic interworking (in this case, the values of bit 4–0 are valid)
bit 4…bit 0: Telematic devices type indication.
If bit4…bit 0 are 10010, it indicates Email. Other values are not supported currently.
<DCS>: user data coding scheme. Its values are defined as follows:
Bits 7…4
00xx
Bit 5
Bits 3…0
0: Message is not
compressed.
1: Message is
compressed. This is
not supported
currently.
Bit 4
00
Class 0, displayed on the user interface but not stored.
A response is sent to the SC to acknowledge the
reception of the message.
01
Class 1, stored to NV (or SIM card if the NV is full)
10
Class 2. Messages are stored to the SIM card only.
After a class 2 message is stored, the storage state will
be sent to the SC. If the SIM card is full, a response is
sent to the SC to notify it of the occurrence and cause
of message storage failure.
11
Class3, stored to the TE. When the MT receives the
message, it sends a response to the SC before routing
the message to the TE.
0: Indicates that bit 1
and bit 0 are
reserved.
1: Indicates that bit 1
and bit 0 serve as
the message type
indication.
0100
Bit 1 Bit 0: message type indication.
Bit 3 Bit 2: message type indication.
00
GSM 7-bit encoding scheme (default value)
01
8-bit encoding scheme
10
UCS2 encoding scheme. TE uses this value when the
user inputs Chinese characters.
11
Reserved
Reserved
…
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Bits 7…4
PDU Mode Commands for SMS
Bits 3…0
1011
1100
The message content is
discarded. The message
waiting indication is
presented, and the user data
is encoded using the GSM
7-bit encoding scheme.
The settings of bits 3…0 are the same as those when bits
7…4=1101.
1101
The message is stored. The
message waiting indication is
presented, and the user data
is encoded using the GSM
7-bit encoding scheme.
Bit 3: enables or disables message waiting indication.
0
Disables message waiting indication
1
Enables message waiting indication
Bit 2: reserved, the value is 0.
Bit 1 Bit 0: message type indication.
00
voice message waiting
01
Fax message waiting
10
Email message waiting
11
Message of unknown type waiting
1110
The message is stored. The
message waiting indication
appears, and the user data is
encoded using uncompressed
UCS2 encoding scheme.
The settings of bits 3…0 are the same as those when bits
7…4=1101.
1111
Data coding/message class
Bit 3: reserved, the value is 0.
Bit 2: message encoding scheme. Its values are defined as
follows:
0
GSM 7-bit encoding scheme (default value)
1
8-bit encoding scheme
Bit 1 Bit 0: message type indication.
00
Class 0, displayed on the user interface but not stored.
A response is sent to the SC to acknowledge the
reception of the message.
01
Class 1, stored to NV (or SIM card if the NV is full)
10
Class 2. Messages are stored to the SIM card only.
After a class 2 message is stored, the storage state will
be sent to the SC. If the SIM card is full, a response is
sent to the SC to notify it of the occurrence and cause
of message storage failure.
11
Class3, stored to the TE. When the MT receives the
message, it sends a response to the SC before routing
the message to the TE.
<VP>: indicates the validity period, which starts from the time when the message is
received by the SC. If <VPF>=00, this field is omitted. The following table lists the
validity periods.
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PDU Mode Commands for SMS
VP Value
Validity Period
0 to 143
(VP + 1) x 5 minutes
144 to 167
12 hours + ((VP – 143) x 30 minutes)
168 to 196
(VP – 166) x 1 day
197 to 255
(VP – 192) x 1 week
<UDL>: user data length, depending on the specific encoding scheme.
Default 7-bit encoding scheme
<UDL> indicates the total number of septets.
8-bit encoding scheme
<UDL> indicates the total number of octets.
UCS2 encoding scheme
<UDL> indicates the total number of octets.
Compressed 7-bit, 8-bit or
UCS2 encoding scheme
<UDL> indicates the total number of octets after
compression.
For messages encoded using a compressed encoding scheme, the length of <UD>
should not be greater than 160 septets. For messages encoded using an
uncompressed encoding scheme, the length of <UD> should not be greater than 140
octets.
<UD>: user data. Its data validity depends on <UDL>.
8.9.4 Property Description
Saving upon Power-off
PIN
NA
Y
8.9.5 Example
Run:
AT+CMGS=18
Response:
>
Run:
0891683108608805F931000B813109731147F40000FF04F4F2
9C0E
Response:
+CMGS: 135
OK
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PDU Mode Commands for SMS
8.10 AT+CNMA–New Message Acknowledgement
8.10.1 Command Syntax
Set command
AT+CNMA[=<n>[,<length>[<CR>PDU is given<ctrl-Z/ESC>]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MS-related error:
<CR><LF>+CMS ERROR: <err><CR><LF>
Test command
AT+CNMA=?
Possible Response(s)
<CR><LF>+CNMA: (list of supported <n>s)<CR><LF><CR><LF>OK<CR><LF>
8.10.2 Interface Description
The set command acknowledges the reception of a new message that is routed
directly to the TE. This acknowledgement command shall be used when +CSMS
parameter <service> equals 1. For the use of this command, see section 8.5
AT+CNMI–Indicate New Message to TE.
Note:
Set AT+CSMS=1 before AT+CNMI settings.
In PDU mode, either positive (RP-ACK) or negative (RP-ERROR) acknowledgement
can be sent to the network. The parameter <n> defines which acknowledgement to be
send.
Optionally an acknowledgement TPDU (SMS-DELIVER-REPORT for RP-ACK or
RP-ERROR) may be sent to the network. The entering of PDU is done similarly as
specified in command Send Message +CMGS, except that the format of <ackpdu> is
used instead of <pdu>. PDU shall not be bounded by double quotation marks.
Before the previous message is acknowledged, the MT will not send another +CMT or
+CDS result code to the TE.
If the MT does not receive acknowledgement within required time (network timeout),
the MT will send RP-ERROR to the network and automatically set both <mt> and
<ds> values of +CNMI to zero to prevent SMS-DELIVER indications and message
status reports from being sent to the TE. To enable the MT to send SMS-DELIVER
indications and message status reports to the TE, <mt> and <ds> must be reset.
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PDU Mode Commands for SMS
If the command is executed when no acknowledgement is expected, +CMS ERROR:
<err> is returned.
The test command returns a list of supported <n> values. If the value supported is 0
only, sending of TPDU is not supported.
8.10.3 Parameter Description
<n>:
0
Command operates similarly as defined for the text mode
1
Send RP-ACK (or buffered result code received correctly)
2
Send RP-ERROR
<ackpdu>: basic elements
Abbr
Reference
P1)
P2)
Description
TP-MTI
TP-Message Type Indicator
M
2b
TP-message type
TP-UDHI
TP-User-Data-Header-Indication
O
b
Indicates that the TP-UD has one
header.
TP-PI
TP-Parameter-Indicator
M
o
Indicates the optional parameters.
TP-PID
TP-Protocol-Identifier
O
o
Protocol ID
TP-DCS
TP-Data-Coding-Scheme
O
o
Data coding scheme
TP-UDL
TP-User-Data-Length
O
o
User data length
TP-UD
TP-User-Data
O
3)
User data
Notes:
Number of
Octets

Mandatory (M) or Optional (O).

Integer (I), Bit (b), 2 bits (2b), octet (o).

Depending on TP-DCS.
7
6
5
4
3
2
1
0
1
TP-MTI, TP-UDHI
1
TP-PI
0, 1
TP-PID
0, 1
TP-DCS
0, 1
TP-UDL
0 to 159
TP-UD
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PDU Mode Commands for SMS
Bits 7 and 2–5 of the first byte are not used in SMS-DELIVER-REPORT. The sender
should set them to zero. If any of those bits is not zero, it will be omitted by the
recipient.
Description of the basic elements:
<TP-MTI>: TP-Message type; bit 0 and bit 1 of the first byte.
bit1 bit0
Message type
00
SMS-DELIVER (in the direction SC to MT)
00
SMS-DELIVER-REPORT (in the direction MT to SC)
10
SMS-STATUS-REPORT (in the direction SC to MT)
10
SMS-COMMAND (in the direction MT to SC)
01
SMS-SUBMIT (in the direction MT to SC)
01
SMS-SUBMIT-REPORT (in the direction SC to MT)
11
Reserved
<TP-UDHI>: indicates that the TP-UD has one header; bit 6 of the first byte.
0
The TP-UD field contains SMS message only.
1
There is a header at the beginning of the TP-UD field.
<TP–PI>: indicates the optional parameters. Setting the bit to 1 indicates that the
corresponding parameter exits.
bit 7
bit 6
Extension bit Reserved
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Reserved
Reserved
Reserved
TP-UDL
TP-DCS
TP-PID
<TP-PID>: protocol ID. When sending a message, the TE sets <TP-PID> to the
default value 00000000. When sending an email, the TE sets <TP-PID> to
00110010=0x32.
<TP-DCS>: the TE adopts the TP-DSC mode to send a message.
Bit 7–bit
6 (TE
uses
this
TP-DC
S
mode)
00: used by TE
when sending a
message.
Bit 5
Bit 4
0
TE sets bit 5 to zero, indicating the message is not
compressed.
1
If bit 5 is set to 1, the message is compressed. TE
does not use this value.
0
When TE sets bit 4 to 0, bit 1 and bit 0 are reserved
and set to 00.
1
When bit 4 is set to 1, bit 1 and bit 0 indicate the
message type.
A message's type is dependent on user settings. If the
user specifies a message type (for example, class 1 or
class 2), TE sets bit 4 to 1.
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Bit 7–bit
4 (TE
does
not use
this
TP-DC
S
mode)
1100 and 1101:
GSM 7 bit
encoding
1110:
uncompressed
UCS-2
encoding
scheme)
1111: not used
by TE
Bit 3–2:
message
encoding
scheme
00
GSM 7-bit encoding scheme; default.
01
8-bit encoding scheme
10
UCS2 encoding scheme. TE uses this value when the
user inputs Chinese characters.
Bit 1–0:
message
type; set
by TE
according
to users'
selection
00
Class 0. Messages are displayed on the user interface
but not stored. A response is sent to the SC to
acknowledge the reception of the message.
01
Class 1. Messages are stored to the MT, or to the SIM
card when the message storage on the MT is used up.
10
Class 2. Messages are stored to the SIM card only.
After a class 2 message is stored, the storage state
will be sent to the SC. If the SIM card is full, a
response is sent to the SC to notify it of the
occurrence and cause of message storage failure.
11
Class 3. Messages are stored to the TE. When the MT
receives the message, it sends a response to the SC
before routing the message to the TE.
0
Disable the message waiting indication feature.
Bit 3
At present, the message waiting indication feature is
not supported for enhanced messages, email
messages and voicemail messages.
1
Enable the message waiting indication feature.
Bit 2
0
Reserved
Bit 1–0:
message
waiting
type
00
Voice message waiting
01
Fax message waiting
10
Email message waiting
11
Message of unknown type waiting
Bit 3
0
Reserved
Bit 2
0
7-bit encoding
1
8-bit encoding scheme
00
Class 0. Messages are displayed on the user interface
but not stored. A response is sent to the SC to
acknowledge the reception of the message.
01
Class 1. Messages are stored to the MT (NV memory)
or the SIM card.
10
Class 2. Messages are stored to the SIM card only.
After a class 2 message is stored, the storage state
will be sent to the SC.
Bit 1–0
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11
PDU Mode Commands for SMS
Class 3. Messages are stored to the TE. When the MT
receives the message, it sends a response to the SC
before routing the message to the TE.
<TP-UDL>: the number of bytes that the user data field occupies. If <TP-UDL> is 0,
the user data field does not exist.
<TP-UD>: the user data field may contain a user data header. If the header is
contained (that is, the value of bit 6 in byte 0 is 1), the value of TP-UDL equals to the
length of the User-Data-Header plus the length of the User-Data. The value of
<TP-UDL> depends on the encoding scheme:
If the default encoding scheme (7-bit encoding) is used, <TP-UDL> indicates the
number of septets contained in the user data.
If the 8-bit encoding scheme is used, <TP-UDL> indicates the number of octets
contained in the user data.
If the UCS2 encoding scheme is used, <TP-UDL> also indicates the number of octets
contained in the user data.
If 7-bit, 8-bit or UCS2 compression encoding is used, <TP-UDL> indicates the number
of octets contained in the compressed user data.
Figure 8-1 and Figure 8-2 illustrate the formats of the user data encoded using
different schemes.
Figure 8-1 User data encoded using the default 7-bit encoding scheme
Octets
Octets
UDL
UDHL IEIa IEIDLa
IEDa
IEIb ......... IEIn
IEDLn
IEDn
Total number of Octets
Fill bits
SM (7bit data)
Septet Boundary
Length Indicator
Total number of Septets
Length Indicator
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PDU Mode Commands for SMS
Figure 8-2 User data encoded using the 8-bit or UCS2 encoding scheme
Octets
Octets
UDL
UDHL
IEIa IEIDLa
IEDa
IEIb ......... IEIn
IEDLn
IEDn
SM (8 bit data
or UCS-2 data)
Octet Boundary
Total number of Octets
Length Indicator
Total number of Octets
Length Indicator
In Figure 8-1 and Figure 8-2 , IEI is short for Information Element Identifier.
8.10.4 Property Description
Saving upon Power-off
PIN
NA
N
8.10.5 Example

Step 1
Run:
AT+CSMS=1
Response:
+CSMS: 1,1,1
OK

Step 2
Run:
AT+CNMI=2,2,0,1
Response:
OK

Step 3
Run:
AT+CMGS=18
Response:
>
Run:
0891683108608805F931000B813109731147F40000FF04F4F2
9C0E
Response:
+CMGS: 135
OK
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
PDU Mode Commands for SMS
Step 4
Response:
+CMT: ,24
0891683108608805F9240D91683109731147F4000031305012
43600004F4F29C0E
Run:
AT+CNMA
Response:
OK
8.11 +CMTI–Unsolicitedly Present of Message Arrival
Indication
8.11.1 Command Syntax
URC
<CR><LF>+CMTI: <mem>,<index><CR><LF>
8.11.2 Interface Description
This command allows indications that a new message is received.
8.11.3 Parameter Description
<mem>:
"SM"
(U)SIM message storage
<index>: integer type value indicating the memory location.
8.11.4 Property Description
Saving upon Power-off
PIN
NA
NA
8.11.5 Example
Response:
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+CMTI: "SM",1
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PDU Mode Commands for SMS
8.12 +CMT–Unsolicitedly Present of New Message
Reported Directly
8.12.1 Command Syntax
URC
<CR><LF>+CMT: [<reserved>],<length><CR><LF><pdu><CR><LF>
8.12.2 Interface Description
This command allows the indication of new messages to the TE without storing them.
8.12.3 Parameter Description
<reserved>: reserved.
<length>: integer type value indicating the number of bytes of PDU data.
<pdu>: protocol data unit, whose format is the same as that defined in section 8.7
AT+CMGL–List Messages.
8.12.4 Property Description
Saving upon Power-off
PIN
NA
NA
8.12.5 Example
Response:
+CMT: ,24
0891683108608805F9240D91683109731147F4000031305051
52430004F4F29C0E
8.13 +CDSI–Unsolicitedly Present of Newly Received
Message Status Report
8.13.1 Command Syntax
URC
<CR><LF>+CDSI: <mem>,<index><CR><LF>
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PDU Mode Commands for SMS
8.13.2 Interface Description
This command allows indication that a new message status report is received and
reservation of the memory location.
8.13.3 Parameter Description
<mem>:
"SM"
(U)SIM message storage
<index>: integer type value indicating the memory location.
8.13.4 Property Description
Saving upon Power-off
PIN
NA
NA
8.13.5 Example
Response:
+CDSI: "SM",48
8.14 +CDS–Unsolicitedly Present of New Message Status
Report Reported Directly
8.14.1 Command Syntax
URC
<CR><LF>+CDS: <length><CR><LF><pdu><CR><LF>
8.14.2 Interface Description
This command allows the direct indication of new messages received to the TE
without storing the new message status report.
8.14.3 Parameter Description
<length>: integer type value indicating the number of bytes of PDU data.
<pdu>: protocol data unit.
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PDU Mode Commands for SMS
8.14.4 Property Description
Saving upon Power-off
PIN
NA
NA
8.14.5 Example
Response:
+CDS: 26
0891683108608805F906750D91683109731147F43130509134
92003130509134430000
8.15 +CBMI–Unsolicitedly Present of Newly Received Cell
Broadcast Message
8.15.1 Command Syntax
URC
<CR><LF>+CBMI: <mem>,<index><CR><LF>
8.15.2 Interface Description
This command allows indication that a new cell broadcast message is received and
reservation of the memory location.
8.15.3 Parameter Description
<mem>:
"BM"
Broadcast message storage
<index>: integer type value indicating the memory location.
8.15.4 Property Description
Saving upon Power-off
PIN
NA
NA
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PDU Mode Commands for SMS
8.15.5 Example
Response:
+CBMI: "BM",1
8.16 +CBM–Unsolicitedly Present of New Cell Broadcast
Message Directly
8.16.1 Command Syntax
URC
<CR><LF>+CBM: <length><CR><LF><pdu><CR><LF>
8.16.2 Interface Description
This command presents cell messages to the TE upon reception without saving.
8.16.3 Parameter Description
<length>: integer type; length of PDU data.
<pdu>: protocol data unit of format specified in 3GPP TS 23.041.
8.16.4 Property Description
Saving upon Power-off
PIN
NA
NA
8.16.5 Example
Response:
+CBM: 88
0000003201116432B9D168341A8D46A3D168341A8D46A3D168
341A8D46A3D168341A8D46A3D168341A8D46A3D168341A8D46
A3D168341A8D46A3D168341A8D46A3D168341A8D46A3D16834
1A8D46A3D168341A8D46A3D100
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AT Command Interface Specification
9
Commands for Standard STK Interface
Commands for Standard STK Interface
9.1 +CUSATP–Unsolicitedly Present of a UICC Proactive
Command
9.1.1 Command Syntax
URC
<CR><LF>+CUSATP: <proactive_command><CR><LF>
9.1.2 Interface Description
The MT uses the unsolicited result code +CUSATP: <proactive_command> to
notify TE that SIM card presents a proactive command.
9.1.3 Parameter Description
<proactive_command>: UICC proactive command, string type in hexadecimal
character format, consisting of the full BER-TLV data object as defined in 3GPP TS
31.111, ETSI TS 102.221 and ETSI TS 102.223 protocols.
9.1.4 Property Description
Saving upon Power-off
PIN
NA
NA
9.1.5 Example
Response:
+CUSATP: "D01A81030123008202818
28D0B043C54494D452D4F55543E91020
00A"
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Unsolicitedly report a
proactive command
"GET INPUT".
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Commands for Standard STK Interface
9.2 AT+CUSATE–Send USAT Envelope
9.2.1 Command Syntax
Set command
AT+CUSATE=<envelope_command>
Possible Response(s)
<CR><LF>+CUSATE:
<envelope_response>[,<busy>]<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CUSATE=?
Possible Response(s)
<CR><LF>OK<CR><LF>
9.2.2 Interface Description
The set command sends a USAT envelope command to UICC.
The test command returns "OK".
9.2.3 Parameter Description
<envelope_command>: an envelope command, string type in hexadecimal
character format, consisting of the full BER-TLV data object as defined in 3GPP TS
31.111, ETSI TS 102.221 and ETSI TS 102.223 protocols.
<envelope_response>: the response to an envelope command, string type in
hexadecimal character format, consisting of the full BER-TLV data object as defined in
3GPP TS 31.111, ETSI TS 102.221 and ETSI TS 102.223 protocols. Empty if the
UICC does not provide response data.
<busy>: integer type.
0
Indicates normal ending of the envelope command.
1
UICC responded with USAT is busy, retry to send the envelope
command by the MT.
2
UICC responded with USAT is busy even after one or more retries by the
MT.
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Commands for Standard STK Interface
9.2.4 Property Description
Saving upon Power-off
PIN
NA
Y
9.2.5 Example
Sent envelope command "MENU SELECTION" (MENU has been got by running the
proactive command "SET UP MENU"); <busy> indicated '0' and envelope command
perform successfully.
Run:
AT+CUSATE="D30782020181900102"
Response:
+CUSATE: "",0
OK
9.3 AT+CUSATT–Send USAT Terminal Response
9.3.1 Command Syntax
Set command
AT+CUSATT=<terminal_response>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT+CUSATT=?
Possible Response(s)
<CR><LF>OK<CR><LF>
9.3.2 Interface Description
The set command sends a USAT terminal response to UICC.
The test command returns "OK".
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Commands for Standard STK Interface
9.3.3 Parameter Description
<terminal_response>: terminal response to a proactive command, string type in
hexadecimal character format, consisting of the full BER-TLV data object as defined in
3GPP TS 31.111, ETSI TS 102.221 and ETSI TS 102.223 protocols.
9.3.4 Property Description
Saving upon Power-off
PIN
NA
Y
9.3.5 Example
Sent the UICC proactive command "DISPLAY TEXT", and terminal response
"Command Perform Successfully" is responded.
Response:
+CUSATP: "D0158103012100820281028D0404434154"
Run:
AT+CUSATT="810301218082028281830100"
Response:
OK
9.4 +CUSATEND–Unsolicitedly Present of Terminating a
UICC Proactive Command Session
9.4.1 Command Syntax
URC
<CR><LF>+CUSATEND<CR><LF>
9.4.2 Interface Description
The MT uses the unsolicited result code +CUSATEND to notify TE that the proactive
command session is terminated.
9.4.3 Property Description
Saving upon Power-off
PIN
NA
NA
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Commands for Standard STK Interface
9.4.4 Example
Response:
+CUSATP: "D04B810301250082028182050D53494D2053657
27669636573FF8F0D8750686F6E65206E756D6265728F0B85
53656C662053657276658F10805370656369616C204E756D6
26572731803212421"
Run:
AT+CUSATT="810301258082028281830100"
Response:
OK
+CUSATEND
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AT Command Interface Specification
Huawei Proprietary Interface: Mobile
Termination Control and Status Interface
10
Huawei Proprietary Interface: Mobile
Termination Control and Status Interface
10.1 AT^RFSWITCH–Set the Flight Mode
10.1.1 Command Syntax
Set command
AT^RFSWITCH=<SW state>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT^RFSWITCH?
Possible Response(s)
<CR><LF>^RFSWITCH: <SW state>,<HW
state><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT^RFSWITCH=?
Possible Response(s)
<CR><LF>^RFSWITCH: (0-1),(0-1)<CR><LF><CR><LF>OK<CR><LF>
10.1.2 Interface Description
The set command sets the Flight Mode.
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Termination Control and Status Interface
The read command queries the current status of flight mode.
The test command checks the parameter range supported by this command.
10.1.3 Parameter Description
<SW state>: state of RF software switch.
0
The state of RF software switch is set to Off.
1
The state of RF software switch is set to on. (default value)
<HW state>: state of RF hardware switch.
0
The state of RF hardware switch is set to Off.
1
The state of RF hardware switch is set to on. (default value)
10.1.4 Property Description
Saving upon Power-off
PIN
Y
N
10.1.5 Example
Run:
AT^RFSWITCH?
Query the current state of RF
switch
Response:
^RFSWITCH: 0,1
Return information for the
current state of the hardware
switch is open, the software
switch is off
OK
10.2 AT^CURC–Set Presentation of Unsolicited Results
10.2.1 Command Syntax
Set command
AT^CURC=<mode>[,<Sleep_UR_mask>,<working_UR_mask>]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
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Termination Control and Status Interface
Read command
AT^CURC?
Possible Response(s)
<CR><LF>^CURC:
<mode>[,<Sleep_UR_mask>,<working_UR_mask>]<CR><LF><CR><LF>OK<
CR><LF>
Test command
AT^CURC=?
Possible Response(s)
<CR><LF>^CURC: (list of supported
<mode>s)<CR><LF><CR><LF>OK<CR><LF>
10.2.2 Interface Description
The set command selects the control mode for the presentation of unsolicited results.
When <mode>=2, the specific types of unsolicited results can be specified.
The read command queries the current control mode for the presentation of
unsolicited results. When <mode>=2, the specific types of unsolicited results can be
queried.
The test command lists the supported control mode for the presentation of unsolicited
results.
10.2.3 Parameter Description
<mode>: control mode for the presentation of unsolicited results.
0
The presentation of unsolicited indications added by Huawei in Table
10-1 is disabled.
1
Enables the presentation of unsolicited indications added by Huawei in
Table 10-1 when not in sleep mode. (default value)
2
According to <Sleeping_UR_cfg> and <working_UR_cfg>,
customer can configure control the parameter mode for the
presentation of unsolicited results and decide whether report for all UR
in Table 10-2 . When MT supports Wwan port, <mode>=2 is not
supported.
Table 10-1 List for the presentation of unsolicited results when CURU=0/1
Command
REGISTER/DEREGISTER
^MODE
^RSSI
^CSNR
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Comment
AT+CURC=0 or 1
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Command
Huawei Proprietary Interface: Mobile
Termination Control and Status Interface
REGISTER/DEREGISTER
Comment
^DSFLOWRPT
(not supported currently)
^EARST
(not supported currently)
^ACTIVEBAND
(not supported currently)
^RSSILVL
(not supported currently)
^HRSSILVL
(not supported currently)
^HDRRSSI
(not supported currently)
^CRSSI
(not supported currently)
^ANLEVEL
(not supported currently)
^BOOT
(not supported currently)
Table 10-2 The control mode when <mode>=2
Parameters
in sleeping
mode
Parameters in
operating
mode
Suspend status
Normal status
1
1
Directly report
Directly report
1
0
Directly report
Discard
0
1
Cache
Directly report
0
0
Discard
Discard
When <mode> is 0 or 1, the unsolicited AT is controlled in Table 10-3 and Table 10-4 .
Table 10-3 Situation when MT does not support Wwan port
Mode
Status
Suspend
Normal
0
Discard
Discard
1
Cache (report after module is waken-up)
Directly report
Table 10-4 Situation when MT supports Wwan port
Mode
Status
Suspend
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Termination Control and Status Interface
Mode
Status
0
Cache (just report to wwan port after
module is waken-up)
Directly report(just report
to wwan port)
1
Cache (report after module is waken-up)
Directly report
<Sleeping_UR_cfg>: specifies the types of unsolicited results to be presented
when in sleep mode. The length is 64-bits and the value must be entered in
hexadecimal format.

Bit [63-61] is reserved for page, it defines the page number of unsolicited results
to be presented (which is used to expansion for the presentation of unsolicited
results); Up to eight pages can be specified.

Bit [60-0] is <Sleep_UR_mask> that defines the types of unsolicited results to be
presented; each bit specifies whether the presentation of the corresponding type
of unsolicited results is enabled or disabled. If the value of a bit is 1, the
presentation is enabled. If the value of a bit is 1, the presentation is disabled. The
detail information for each bit can be seen in Table 10-5 .
The following table describes the definitions of bit [63-61] and bit [60-0] for
<Sleeping_UR_cfg>.
Bit[63-61]
Bit[60-0]
Page
Sleep_ur_mask
<working_UR_cfg>: specifies the types of unsolicited results to be presented when
in operating mode. The length is 64-bits and the value must be entered in
hexadecimal format.

Bit [63-61] is reserved for page, it defines the page types of unsolicited results to
be presented (which is used to expansion for the presentation of unsolicited
results); Up to eight pages can be specified.

Bit [60-0] is <work_UR_mask> that defines the types of unsolicited results to be
presented; each bit specifies whether the presentation of the corresponding type
of unsolicited results is enabled or disabled. If the value of a bit is 1, the
presentation is enabled. If the value of a bit is 1, the presentation is disabled. The
detail information for each bit can be seen in Table 10-5 .
The following table describes the definitions of bit [63-61] and bit [60-0] for
<work_UR_cfg>.
Bit[63-61]
Bit[60-0]
Page
work_ur_mask
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Termination Control and Status Interface
Table 10-5 Definitions of Page 0 Bit [60~0] for the presentation of unsolicited results
Bit 0
Bit 1
Bit 2
Bit 3
^MODE
^RSSI
^CSNR
^SRVST
Bit 4
Bit 5
Bit 6
Bit 7
+CREG/+CGREG
^SIMST
^NWTIME
^ACTIVEBAND
(not supported)
(not supported)
Bit 8
Bit 9
Bit 10
Bit 11
^ANLEVEL
^LOCCHD
^SIMFILEREFRESH
(not supported)
(not supported)
(not supported)
Bit 12
Bit 13
Bit 14
Bit 15
^SMMEMFULL
^TIMESETRULT
^POSITION
/^DATASETRULT
^WNINV
^POSEND
(not supported)
/^DATAVALIDITY
(not supported)
(not supported)
(not supported)
Bit 16
Bit 17
Bit 18
Bit 19
^WPDCP
^WPDDL
^WPDOP
+CTZV
(not supported)
(not supported)
(not supported)
(not supported)
Bit 20
Bit 21
Bit 22
Bit 23
^NDISEND
^BOOT
^DSFLOWRPT
^EARST
(not supported)
(not supported)
(not supported)
(not supported)
Bit 24
Bit 25
Bit 26
Bit 27
^ORIG
^CONF
^CONN
^CEND
(not supported)
(not supported)
(not supported)
(not supported)
Bit 28
Bit 29
Bit 30
Bit 31
+CUSD
+CMTI
^STIN
^RFSWITCH
(not supported)
Bit 32
Bit 33
Bit 34
Bit 35
^RSSILVL
^HRSSILVL
^HDRRSSI
^CRSSI
(not supported)
(not supported)
(not supported)
(not supported)
Bit 36
Bit 37
Bit 38
Bit 39
^OTACMSG
^DSDORMANT
^IPDATA
(not supported)
(not supported)
(not supported)
Bit 40
Bit 41
Bit 42
Bit 43
^XDSTATUS
+CLIP
+CCWA
+CSSI
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Termination Control and Status Interface
(not supported)
(not supported)
(not supported)
(not supported)
Bit 44
Bit 45
Bit 46
Bit 47
+CSSU
^IPSTATE
+CUSATP
+CUSATEND
(not supported)
(not supported)
(not supported)
(not supported)
Bit 48
Bit 49
Bit 50
Bit 51
^NDISSTAT
Reserved
Reserved
Reserved
Bit 52
Bit 53
Bit 54
Bit 55
Reserved
Reserved
Reserved
Reserved
Bit 56
Bit 57
Bit 58
Bit 59
Reserved
Reserved
Reserved
Reserved
-
-
-
Bit 60
Reserved
Notes:

When <mode>=0 or 1, <Sleeping_UR_cfg> and <working_UR_cfg> must not
be contained in the command. When <mode>=2, <Sleeping_UR_cfg> and
<working_UR_cfg> must be contained in the command, or ERROE will be returned.
The <Sleeping_UR_cfg> and <working_UR_cfg> configured when <mode>=2
are not saved when the product is powered off.

Up to 8*61=488 of the presentation of unsolicited results supported (including ones added
by huawei and standard) can be configured by customer. The strong related presentation of
unsolicited results are controlled by the same bit, such as ^TIMESETRULT and
^DATASETRULT. For the presentation of unsolicited results added later, you must add the
illustration for the bit.

Undefined bits and currently-not-supported unsolicited results cannot be configured by
using the AT^CURC command.

The AT commands of each unsolicited results may vary with the specific products.

The unsolicited AT will be store when the host is in sleep status. And the unsolicited AT
result will be reported to the host when the host exit sleep status to reduce the wakeup
times.

When connect to Windows 8 host, <mode>=0 or 1 is not supported and the Bit [0,3,
30,31,48] cannot be configured to 0.
10.2.4 Property Description
Saving upon Power-off
PIN
N
N
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Termination Control and Status Interface
10.2.5 Example
Run:
AT^CURC=0
Response:
OK
Run:
AT^CURC=1
Response:
OK
Run:
AT^CURC=2,FF,F
Response:
OK
Run:
AT^CURC?
Response:
^CURC: 2,0xff,0xf
Set <mode> to 0
Set <mode> to 1
Set <mode> to 2
OK
10.3 AT^HGMR–Request Version Information
10.3.1 Command Syntax
Execution command
AT^HGMR=<type>
Possible Response(s)
<CR><LF>^HGMR: <version><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT^HGMR=?
Possible Response(s)
<CR><LF>^HGMR: (list of supported
<type>s)<CR><LF><CR><LF>OK<CR><LF>
10.3.2 Interface Description
This command queries the version information, including the baseline software
version released by platform suppliers, the platform software version which the
product bases on, the product software version and the software version of PC
Vendor.
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Termination Control and Status Interface
10.3.3 Parameter Description
<type>: integer type, indicating the query type.
1
Queries the baseline software version (not supported currently)
2
Queries the platform software version (not supported currently)
3
Queries the product software version
4
Queries the software version of PC Vendor
<version>: string type, indicating the specified software version information.
Note:
A blank character "" will be returned when a query type is not supported or does not exsit.
10.3.4 Property Description
Saving upon Power-off
PIN
NA
N
10.3.5 Example
Run:
AT^HGMR=1
Response:
^HGMR: ""
OK
Run:
AT^HGMR=4
Response:
^HGMR: "MU736CUST_B001SP01_OEM"
OK
Run:
AT^HGMR=?
Response:
^HGMR: (1-4)
OK
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AT Command Interface Specification
11
Huawei Proprietary Interface: Network
Service Interfaces
Huawei Proprietary Interface:
Network Service Interfaces
11.1 AT^SYSINFO–Query System Information
11.1.1 Command Syntax
Execution command
AT^SYSINFO
Possible Response(s)
<CR><LF>^SYSINFO:<srv_status>,<srv_domain>,<roam_status>,<sy
s_mode>,<sim_state>[,<lock_state>,<sys_submode>]<CR><LF><CR><
LF>OK<CR><LF>
11.1.2 Interface Description
This command queries the current system information, such as the system service
status, domain, roaming status, system mode, and SIM card state.
11.1.3 Parameter Description
<srv_status>: indicates the system service status.
0
No services
1
Restricted services
2
Valid services
3
Restricted regional services (not supported currently)
4
Power saving or hibernate state (not supported currently)
<srv_domain>: indicates the system service domain.
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0
No services
1
CS service only
2
PS service only
3
PS+CS services
4
Not registered to CS or PS; searching now
255
CDMA (not supported currently)
<roam_status>: indicates the roaming status.
0
Not roaming
1
Roaming
<sys_mode>: indicates the system mode.
0
No services
3
GSM/GPRS mode
5
WCDMA mode
7
GSM/WCDMA mode
<sim_state>: indicates the state of the SIM card.
0
Invalid SIM card
1
Valid SIM card
2
Invalid SIM card in CS
3
Invalid SIM card in PS
4
Invalid SIM card in PS and CS
240
ROM SIM version
255
No SIM card is found
<lock_state>: indicates whether the SIM card is locked by the CardLock feature.
0
SIM card is not locked by the CardLock feature.
1
SIM card is locked by the CardLock feature.
<sys_submode>: indicates the system sub-mode.
0
No services
1
GSM mode
2
GPRS mode
3
EDGE mode
4
WCDMA mode
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5
HSDPA mode
6
HSUPA mode
7
HSUPA and HSDPA mode
Huawei Proprietary Interface: Network
Service Interfaces
Note:
According to AT command specifications, parameters value ranges of ^SYSINFO will not be
expanded any more. A new command ^SYSINFOEX is added. To be compatible with Huawei's
earlier-version client and third-party clients, when the value of <sys_submode> is invalid (at
present, valid values are 0–18), one of the following default values will be used: 4 (for products
that support WCDMA).
11.1.4 Property Description
Saving upon Power-off
PIN
NA
N
11.1.5 Example
Run:
AT^SYSINFO
Response:
^SYSINFO:2,3,0,5,1,0,4
OK
11.2 AT^SYSCFG–Configure System
11.2.1 Command Syntax
Set command
AT^SYSCFG=<mode>,<acqorder>,<band>,<roam>,<srvdomain>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT^SYSCFG?
Possible Response(s)
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<CR><LF>^SYSCFG:
<mode>,<acqorder>,<band>,<roam>,<srvdomain><CR><LF><CR><LF>O
K<CR><LF>
Test command
AT^SYSCFG=?
Possible Response(s)
<CR><LF>^SYSCFG: (list of supported <mode>s),(list of supported
<acqorder>s),list of supported (<band>,<band_name>)s,(list of supported
<roam>s),(list of supported
<srvdomain>s)<CR><LF><CR><LF>OK<CR><LF>
11.2.2 Interface Description
The set command sets the system mode, GW access order, frequency band, roaming
support, domain, and other features.
The read command queries the current system configuration.
The test command returns values supported as a compound value.
11.2.3 Parameter Description
<mode>: specifies the system mode.
2
Automatic
13
GSM only
14
WCDMA only
16
No change
<acqorder>: specifies the network access order.
0
Automatic
1
GSM > WCDMA
2
WCDMA > GSM
3
No change
255
Not supported
<band>: a hexadecimal value that specifies the frequency band, which is related to
the system mode and dependent on the MT's performance. The value of <band> can
be one of the following values and their combinations (excluding 0x3FFFFFFF and
0x40000000):
80 (CM_BAND_PREF_GSM_DCS_1800)
GSM DCS systems
100 (CM_BAND_PREF_GSM_EGSM_900)
Extended GSM 900
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200000 (CM_BAND_PREF_GSM_PCS_1900)
GSM PCS
400000 (CM_BAND_PREF_WCDMA_I_IMT_2000)
WCDMA IMT 2000
3FFFFFFF (CM_BAND_PREF_ANY)
Any frequency band
40000000 (CM_BAND_PREF_NO_CHANGE)
No change of the band
2000000 (CM_BAND_PREF_WCDMA_IX_1700)
AWS
0000000000400000 (CM_BAND_PREF_WCDMA_IMT)
WCDMA_IMT(2100)
0002000000000000
WCDMA 900
04000000
WCDMA 850
0000000000800000
WCDMA 1900
00680380
Automatic
00080000
GSM 850
<band_name>: a string type value indicating the frequency band name.
<roam>: indicates whether roaming is supported.
0
Not supported
1
Supported
2
No change
<srvdomain>: indicates the domain setting.
0
CS_ONLY
1
PS_ONLY(not supported currently)
2
CS_PS
3
ANY
4
No change
255
Not supported
11.2.4 Property Description
Saving upon Power-off
PIN
Y
Y
Note:
In the AT&T version, AT^SYSCFG can not be saved upon power-off because of the AT&T ENS
feature.
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11.2.5 Example
Run:
AT^SYSCFG=?
Response:
^SYSCFG: (2,13,14,16),(0-3),((3fffffff,"All
Bands"),(2000000400180,"GSM900/GSM1800/WCDMA900/WC
DMA2100"),(6A80000,"GSM850/GSM1900/WCDMA850/AWS/WC
DMA1900")),(0-2),(0-4)
OK
Run:
AT^SYSCFG?
Response:
^SYSCFG: 2,0,3fffffff,1,2
OK
Run:
AT^SYSCFG=14,0,3fffffff,1,2
Response:
OK
11.3 AT^CSNR–Query RSCP and ECIO
11.3.1 Command Syntax
Read command
AT^CSNR?
Possible Response(s)
<CR><LF>^CSNR:<rscp>,<ecio><CR><LF><CR><LF>OK<CR><LF>
Test command
AT^CSNR=?
Possible Response(s)
<CR><LF>^CSNR: (list of supported <rscp>s),(list of supported
<ecio>s)<CR><LF><CR><LF>OK<CR><LF>
11.3.2 Interface Description
The read command queries the RSCP/ECIO signal strength. The RSCP/ECIO signal
strength depends on the change of the RSSI.
The relationship between RSCP, ECIO and RSSI is as follows: RSCP = ECIO + RSSI.
In the equation, RSCP, ECIO and RSSI must be absolute values instead of relative
values.
The test command queries the parameter range supported by this command.
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11.3.3 Parameter Description
<rscp>: a value ranging from –145 dBm to –60 dBm. In the AT&T customized version,
the void value is 255 in the Win8 system.
<ecio>: a value ranging from –32 dBm to 0 dBm.
11.3.4 Property Description
Saving upon Power-off
PIN
NA
N
11.3.5 Example
Run:
AT^CSNR?
Response:
^CSNR:-76,-3
OK
11.4 AT^USSDMODE–Set USSD Mode
11.4.1 Command Syntax
Set command
AT^USSDMODE=<mode>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT^USSDMODE?
Possible Response(s)
<CR><LF>^USSDMODE: <mode><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Test command
AT^USSDMODE=?
Possible Response(s)
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<CR><LF>^USSDMODE: (list of supported
<mode>s)<CR><LF><CR><LF>OK<CR><LF>
11.4.2 Interface Description
The set command sets the USSD mode.
The read command queries current USSD mode.
The test command returns the list of all supported USSD mode.
11.4.3 Parameter Description
<mode>:
0
The UE will follow the 3GPP, and decode the data that UE sends to the
network.
1
The UE will not decode the data that UE sends to the network.
11.4.4 Property Description
Saving upon Power-off
PIN
Y
N
11.4.5 Example

Example 1:
Run:
AT^USSDMODE?
Response:
^USSDMODE: 1
OK

Example 2:
Run:
AT^USSDMODE=0
Response:
OK

Example 3:
Run:
AT^USSDMODE=?
Response:
^USSDMODE: (0-1)
OK
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12
Huawei Proprietary Interface: STK Interface
Huawei Proprietary Interface: STK
Interface
12.1 AT^CUSATM–Query the Main Menu
12.1.1 Command Syntax
Read command
AT^CUSATM?
Possible Response(s)
<CR><LF>^CUSATM: <setup_menu><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
12.1.2 Interface Description
This command queries STK main menu information. After UICC sends the proactive
command "SETUP MENU" to MT, TE can use AT^CUSATM to query the content of
the proactive command "SETUP MENU". If UICC does not send the proactive
command "SET UP MENU" to MT, <setup_menu> is empty when TE query the
content of the proactive command "SETUP MENU".
12.1.3 Parameter Description
<setup_menu>: UICC proactive command, string type in hexadecimal character
format, consisting of the full BER-TLV data object (which is the proactive command
"SETUP MENU" sent by UICC) as defined in 3GPP TS 31.111, ETSI TS 102.221 and
ETSI TS 102.223 protocols.
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12.1.4 Property Description
Saving upon Power-off
PIN
NA
Y
12.1.5 Example
Run:
AT^CUSATM?
Response:
^CUSATM:"D0818A81030125008202818285118051687403901
A005500530049004D53618F0D01444953504C4159205445585
48F0A0247455420494E4B45598F0A0347455420494E5055548
F0A044D4F52452054494D458F0A05504C415920544F4E458F0
E06504F4C4C20494E54455256414C8F0807524546524553488
F130853454E442053484F5254204D455353414745"
OK
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13
Huawei Proprietary Interface: M.2 Interface
Huawei Proprietary Interface: M.2
Interface
13.1 AT+XTSM–Set Thermal Sensor with the Threshold
13.1.1 Command Syntax
Set command
AT+XTSM=<temp_sensor_id>[,<AlarmID>[,[<TripPointTemp>,<Hystere
sis>][,<sampling_period>]]]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Test command
AT+XTSM=?
Possible Response(s)
<CR><LF>+XTSM: (list of supported <temp_sensor_id>s),(list of supported
<AlarmId>s),(list of supported <TripPointTemp>s),(list of supported
<Hysteresis>s),(list of supported
<sampling_period>s)<CR><LF><CR><LF>OK<CR><LF>
13.1.2 Interface Description
This command configures thermal sensors with the threshold break points.
The set command enables or disables the alarms for particular sensor.
The test command returns the possible values of thermal sensor monitoring option,
alarm ID range for trip point, hysteresis and sampling period.
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13.1.3 Parameter Description
<temp_sensor_id>: temperature sensor ID. Currently only RF sensor is supported.
0
RF sensor
<AlarmID>: alarm ID value, ranging from 1 to 10.
<TripPointTemp>: minimum value 0 and maximum value 119000 in MilliDegC. The
actual temperature is <TripPointTemp> minus 20000 MilliDegC.For example, when
<TripPointTemp> is 0, the actual temperature is -20000 MilliDegC, and also the
<TripPointTemp> 119000 is corresponding to 99000 MilliDegC.
<Hysteresis>: minimum value 100, maximum value 99000 in MiliDegC.
<Hysteresis> can be used only with <TripPointTemp>.
<sampling_period>: polling interval in millisecond, Minimum value 1000,
maximum value 4294967293.
13.1.4 Property Description
Saving upon Power-off
PIN
NA
N
13.1.5 Example

Example 1:
Run:
AT+XTSM=0,1,50000,3000,2000
Response:
OK
Run:
AT+XTSM=?
Response:
+XTSM: 0,(1-10),(0-119000),
Set the alarm ID,
tripPointTemp value,
hysteresis value, and
sampling period
Test the available value
ranges of these
parameters
(100-99000),(1000-4294967293)
OK

Example 2:
Run:
AT+XTSM=0,3,76000,5000
Response:
OK

Issue 02 (2013-06-18)
Set the alarm ID,
tripPointTemp value, and
hysteresis value
Example 3:
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Run:
AT+XTSM=0,10,,30000
Response:
OK

Set the sampling period
Example 4:
Run:
AT+XTSM=0,10
Response:
OK

Huawei Proprietary Interface: M.2 Interface
Delete one alarm
Example 5:
Run:
AT+XTSM=0
Response:
OK
Delete all alarms
13.2 +XTS–Unsolicitedly Present of the Threshold
Reached
13.2.1 Command Syntax
URC
<CR><LF>+XTS:
<temp_sensor_id>,<AlarmId>,<OnOff>,<Temp><CR><LF>
13.2.2 Interface Description
The URC will be displayed if the threshold is crossed and it gets enabled if user has
set any alarm.
13.2.3 Parameter Description
<temp_sensor_id>: temperature sensor ID. Currently only RF sensor is supported.
0
RF sensor
<AlarmID>: alarm ID value, ranging from 1 to 10.
<OnOff>:
1
When temperature is rising and it crosses trip point temperature.
0
When it goes below (trip point temperature minus hysteresis).
<Temp>: current temperature value in MiliDegC.
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13.2.4 Property Description
Saving upon Power-off
PIN
NA
N
13.2.5 Example
Run:
AT+XTSM=0,1,50000,3000,2
000
Response:
OK
Response:
+XTS: 0,1,1,31000
MT will unsolicitedly report when
the temperature rises to 31°C
from the temperature that is
lower than 30°C.
Response:
+XTS: 0,1,0,26500
MT will unsolicitedly report when
the temperature drops to 26.5°C
from the temperature that is
higher than 30°C.
Set the alarm ID, tripPointTemp
value, hysteresis value, and
sampling period
13.3 AT+XTAMR–Query the Current Temperature of a
Thermal Sensor
13.3.1 Command Syntax
Set command
AT+XTAMR=<temp_sensor_id>
Possible Response(s)
<CR><LF>+XTAMR:
<temp_sensor_id>,<temp><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
13.3.2 Interface Description
The set command returns the current temperature value of particular thermal sensor.
13.3.3 Parameter Description
<temp_sensor_id>: temperature sensor ID. Currently only RF sensor is supported.
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0
Huawei Proprietary Interface: M.2 Interface
RF sensor
<temp>: current temperature value in MiliDegC.
13.3.4 Property Description
Saving upon Power-off
PIN
NA
N
13.3.5 Example
Run:
AT+XTAMR=0
Response:
+XTAMR: 0,40000
The current temperature of RF
sensor is 40°C.
OK
13.4 AT+XADPCLKFREQINFO–Query Adaptive Clock
Frequency Info
13.4.1 Command Syntax
Set command
AT+XADPCLKFREQINFO=<n>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
Read command
AT+XADPCLKFREQINFO?
Possible Response(s)
<CR><LF>+XADPCLKFREQINFO: <n><CR><LF><CR><LF>OK<CR><LF>
Test command
AT+XADPCLKFREQINFO=?
Possible Response(s)
<CR><LF>+XADPCLKFREQINFO:
<centFreq>,<freqSpread>,<noisePower>[[;<centFreq>,<freqSpread>
,<noisePower>[…]]<CR><LF><CR><LF>OK<CR><LF>
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In case of an MT-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
13.4.2 Interface Description
This command returns the list of frequency information structures. The frequency
information includes the center frequency of the channel number, frequency spread of
the channel number and the noise power referred at antenna.
The set command enables/disables the +XADPCLKFREQINFO URC.
The read command reads the status of enabling/disabling the +XADPCLKFREQINFO
URC.
The test command returns the list of frequency information available, or returns +CME
ERROR: <err> when ACT is disabled.
13.4.3 Parameter Description
<n>:
0
Disable the +XADPCLKFREQINFO URC. (default value)
1
Enable the +XADPCLKFREQINFO URC.
<centFreq>:the center frequency of the channel number in Hz. This is host receiver
channel frequency.
<freqSpread>: the frequency spread of the channel number in Hz. This is host
receiver channel frequency spread.
<noisePower>: the noise power referred at antenna in dBm, at the reported center
frequency, and integrated over a bandwidth equal to reported frequency spread. This
value shall be zeroed if not used.
13.4.4 Property Description
Saving upon Power-off
PIN
N
N
13.4.5 Example
Run:
Issue 02 (2013-06-18)
AT+XADPCLKFREQINFO?
Read the status of
enabling/disabling of the
+XADPCLKFREQINFO URC.
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Response:
Huawei Proprietary Interface: M.2 Interface
+XADPCLKFREQINFO: 0
OK
Run:
AT+XADPCLKFREQINFO=1
Response:
OK
Run:
AT+XADPCLKFREQINFO=0
Response:
OK
Run:
AT+XADPCLKFREQINFO=?
Response:
+XADPCLKFREQINFO: 21476000
Enable the
+XADPCLKFREQINFO URC.
Disable the
+XADPCLKFREQINFO URC.
Query the list of frequency
information available:
centFreq, freqSpread, and
noisePower.
,5000000,0
OK
13.5 +XADPCLKFREQINFO–Unsolicitedly Present of
Adaptive Clock Frequency Info
13.5.1 Command Syntax
URC
<CR><LF>+XADPCLKFREQINFO: <centFreq>,<freqSpread>,<noisePower
>[[;<centFreq>,<freqSpread>,<noisePower>][…]]<CR><LF>
13.5.2 Interface Description
The URC displays the adaptive clock frequency information.
13.5.3 Parameter Description
<centFreq>: the center frequency of the channel number in Hz. This is host receiver
channel frequency.
<freqSpread>: the frequency spread of the channel number in Hz. This is host
receiver channel frequency spread.
<noisePower>: the noise power referred at antenna in dBm, at the reported center
frequency, and integrated over a bandwidth equal to reported frequency spread. This
value shall be zeroed if not used.
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13.5.4 Property Description
Saving upon Power-off
PIN
NA
NA
13.5.5 Example
Response:
+XADPCLKFREQINFO: 21476000,
5000000,0
Issue 02 (2013-06-18)
Unsolicitedly report the
frequency information:
centFreq, freqSpread, and
noisePower.
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14
Huawei Proprietary Interface:
BodySAR Interface
Huawei Proprietary Interface:
BodySAR Interface
14.1 AT^BODYSARON–Disable or Enable BodySAR
14.1.1 Command Syntax
Set command
AT^BODYSARON=<on>
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Read command
AT^BODYSARON?
Possible Response(s)
<CR><LF>^BODYSARON: <on><CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Test command
AT^BODYSARON=?
Possible Response(s)
<CR><LF>^BODYSARON: (0,1)<CR><LF><CR><LF>OK<CR><LF>
14.1.2 Interface Description
The set command enables or disables the BodySAR function.
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Huawei Proprietary Interface:
BodySAR Interface
The read command queries the current BodySAR function status.
The test command checks the parameter value range supported by this command.
14.1.3 Parameter Description
<on>:
0
Disable BodySAR (default value)
1
Enable BodySAR
14.1.4 Property Description
Saving upon Power-off
PIN
N
N
14.1.5 Example
Run:
AT^BODYSARON=1
Response:
OK
14.2 AT^BODYSARWCDMA–Set the Max Tx Power Limit
of WCDMA
14.2.1 Command Syntax
Set command
AT^BODYSARWCDMA=<power>[,<band>[,<power>,<band>]…]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Read command
AT^BODYSARWCDMA?
Possible Response(s)
<CR><LF>^BODYSARWCDMA: list of
(<power>,<band>)s<CR><LF><CR><LF>OK<CR><LF>
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Huawei Proprietary Interface:
BodySAR Interface
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Test command
AT^BODYSARWCDMA=?
Possible Response(s)
<CR><LF>^BODYSARWCDMA:
(12-24),<band><CR><LF><CR><LF>OK<CR><LF>
14.2.2 Interface Description
The set command sets the maximum Tx power limit of WCDMA for each band. Set the
maximum Tx power limit of WCDMA for selected band according to the value of band
bit field, and you can send this command for several times and set the different power
limit when the values of bands are set differently.
The read command queries the maximum Tx power limit of WCDMA for each band. If
the parameter values are not set, the default values are displayed after the query.
The test command checks the band range supported by WCDMA and the parameter
values supported by the maximum Tx power limit for each band.
14.2.3 Parameter Description
<power>: the maximum Tx power limit, integers ranging from 12 to 24 in dBm.
<band>: band bit field, 32-bit digit with hexadecimal. A binary bit indicates a
frequency band. The value of binary bit is shown in the following table (or parameter
superimposed values except 3FFFFFFF).
Parameters
Band
00000001
WCDMA_I_IMT_2100
00000002
WCDMA_II_PCS_1900
00000004
WCDMA_III_1700
00000008
WCDMA_IV_1700
00000010
WCDMA_V_850
00000020
WCDMA_VI_800
00000040
WCDMA_VII_2600
00000080
WCDMA_VIII_900
00000100
WCDMA_IX_1700
3FFFFFFF
All supported bands
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[,<band>[,<power>,<band>]…]: indicates that select all supported bands when all
parameters are default. The parameter can set several groups (less or equal to eight
groups) of power at one time. One <power> is set according to <band> in the same
group.
14.2.4 Property Description
Saving upon Power-off
PIN
Y
N
14.2.5 Example
Run:
AT^BODYSARWCDMA=?
Response:
^BODYSARWCDMA: (12-24),0000009B
OK
Run:
AT^BODYSARWCDMA=20,00000001,18,0
000000a
Response:
OK
Run:
AT^BODYSARWCDMA?
Response:
^BODYSARWCDMA: (20,00000001),
(18,0000000a)
OK
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Indicate that the
firmware supports
WCDMA Band I, Band
II, Band IV, Band V and
Band VIII; the power is
from 12 to 24.
Indicate that set the
maximum WCDMA I Tx
power limit to 20 and
the maximum WCDMA
II and WCDMA IV Tx
power limit to 18.
Indicate that the
current maximum
WCDMA I Tx power
limit is set to 20 and the
maximum WCDMA II
and WCDMA IV Tx
power limit is set to 18.
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14.3 AT^BODYSARGSM–Set the Maximum Tx Power
Limit of GSM
14.3.1 Command Syntax
Set command
AT^BODYSARGSM=<power>[,<band>[,<power>,<band>]…]
Possible Response(s)
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Read command
AT^BODYSARGSM?
Possible Response(s)
<CR><LF>^BODYSARGSM: list of
(<power>,<band>)s<CR><LF><CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
Test command
AT^BODYSARGSM=?
Possible Response(s)
<CR><LF>^BODYSARGSM:
(15-33),<band><CR><LF><CR><LF>OK<CR><LF>
14.3.2 Interface Description
The set command sets the maximum Tx power limit of GSM GPRS and EGPRS for
each band single time-slot. Set the maximum Tx power limit of GSM for selected band
according to the value of band bit field, and AP can send this command for several
times and set the different power limit when the values of bands are set differently.
The read command queries the maximum Tx power limit of GSM for each band. If the
parameter values are not set, the default values are displayed after the query.
The test command checks the band range supported by GSM and the parameter
values supported by the maximum Tx power limit for each band.
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Note:
The AT^BODYSARGSM command sets the maximum Tx power limit of GSM, GPRS and EGPRS
for each band in single time-slot. When the module changes into multi-slot configuration, the
maximum Tx power limit of each time-slot will be reduced. The power reduction in multi-slot
configuration is as follow.
Number of timeslots in uplink
assignment
Reduction of maximum Tx power (dB)
1
0
2
3
3
5
4
6
5
7
6
8
7
8.5
8
9
14.3.3 Parameter Description
<power>: the maximum Tx power limit. Integer ranging from 15 to 33 in dBm.
<band>: band bit field, 32-bit digit with hexadecimal. A binary bit indicates a
frequency band. The value of binary bit is shown in the following table (or parameter
superimposed values except 3FFFFFFF).
Parameters(GPRS)
Parameters(EGPRS)
Band
00000001
00010000
GSM850
00000002
00020000
GSM900
00000004
00040000
GSM1800
00000008
00080000
GSM1900
3FFFFFFF
All supported bands
[,<band>[,<power>,<band>]…]: indicates that select all supported bands when all
parameters are default. The parameter can set several groups (less or equal to eight
groups) of power at one time. One <power> is set according to <band> in the same
group.
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14.3.4 Property Description
Saving upon Power-off
PIN
Y
N
14.3.5 Example
Run:
AT^BODYSARGSM=?
Response:
^BODYSARGSM: (15-33),
000F000F
Indicate that the firmware
supports GSM850, GSM900,
GSM1800 and GSM1900; the
power is from 15 to 33.
OK
Run:
AT^BODYSARGSM=20
Response:
OK
Run:
AT^BODYSARGSM?
Response:
^BODYSARGSM: (20,3FFFFFFF)
OK
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Indicate that set the
maximum Tx power limit for
the band supported by
firmware to 20.
Indicate that the maximum Tx
power limit for the band
supported by firmware is set
to 20.
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Appendix
15
Appendix
15.1 List of URC Commands
URC
Function
+CBM
Present new cell broadcast message
+CBMI
Present newly received cell broadcast message
+CDS
Present new message status report reported
+CDSI
Present newly received message status report
+CMT
Present new message reported
+CMTI
Present message arrival indication
+CUSD
Report USSD of Network
+CUSATP
Indicate a UICC proactive command
+CUSATEND
Indicate a terminated UICC proactive command session
+XTS
Indicate the threshold reached
+XADPCLKFREQINFO
Report adaptive clock frequency info
15.2 CME Error List
Note:
For all AT commands, if the default value of the CMEE is 2, "ERROR" can be reported, or "CME
ERROR" can be reported. "CME ERROR" includes certain common errors and certain specific
errors of the AT commands.
The following describes the mapping between the <err> value of CME ERROR and
the string.
0: phone failure
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1: no connection to phone
2: phone adaptor link reserved
3: operation not allowed
4: operation not supported
5: PH-SIM PIN required
6: PH-FSIM PIN required
7: PH-FSIM PUK required
10: SIM not inserted
11: SIM PIN required
12: SIM PUK required
13: SIM failure
14: SIM busy
15: SIM wrong
16: incorrect password
17: SIM PIN2 required
18: SIM PUK2 required
20: memory full
21: invalid index
22: not found
23: memory failure
24: text string too long
25: invalid characters in text string
26: dial string too long
27: invalid characters in dial string
30: no network service
31: network timeout
32: network not allowed - emergency calls only
40: network personalization PIN required
41: network personalization PUK required
42: network subset personalization PIN required
43: network subset personalization PUK required
44: service provider personalization PIN required
45: service provider personalization PUK required
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46: corporate personalization PIN required
47: corporate personalization PUK required
48: hidden key required
49: EAP method not supported
50: Incorrect parameters
51: Parameter length error for all Auth commands
52: Temporary error for all auth cmds
100: unknown
103: Illegal Mem_Store
106: Illegal ME
107: GPRS services not allowed
111: PLMN not allowed
112: Location area not allowed
113: Roaming not allowed in this location area
132: service option not supported
133: requested service option not subscribed
134: service option temporarily out of order (#34)
148: unspecified GPRS error
149: PDP authentication failure
150: invalid mobile class
257: network rejected service request
258: retry operation
259: invalid deflected to number
260: deflected to own number
261: unknown subscriber
262: service not available
263: unknown class
264: unknown network message
273: Minimum TFT per PDP address error
274: Duplicate TFT eval prec index
275: Invalid TFT param combination
320: call index error
321: call state error
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322: sys state error
323: parameters error
65280: call index error
65281: call state error
65282: sys state error
65283: parameters error
65284: spn file wrong
65285: spn file accessed denied
65286: spn file not exist
65287: another SPN query operation still not finished
65289: input value is out of range
The usage of the common errors defined by Huawei are described as follows:
For products that support mapping of multiple USB ports, AT commands can be sent
via the modem port or the PCUI port. If an AT command is being sent via the modem
port or its execution is not finished, other commands entered via the PCUI port cannot
be executed. In this case, to respond to the user timely, the following error messages
should be returned as the response:
If CMEE=0, ERROR is returned.
If CMEE=1, +CME ERROR:4096,INFO:xxx is returned.
In the error message, xxx (up to 12 characters) is a copy of the command to which the
error message is returned as a response.
If CMEE=2, +CME ERROR:modem is busy,INFO:xxx is returned.
15.3 CMS Error List
The following lists the <err> value of CMS ERROR that may be returned by all AT
commands of GSM/WCDMA product short messages.
0...127: 3GPP TS 24.011 clause E.2 values
128...255: 3GPP TS 23.040 clause 9.2.3.22 values
300: ME failure
301: SMS service of ME reserved
302: operation not allowed
303: operation not supported
304: invalid PDU mode parameter
305: invalid text mode parameter
310: (U)SIM not inserted
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311: (U)SIM PIN required
312: PH-(U)SIM PIN required
313: (U)SIM failure
314: (U)SIM busy
315: (U)SIM wrong
316: (U)SIM PUK required
317: (U)SIM PIN2 required
318: (U)SIM PUK2 required
320: memory failure
321: invalid memory index
322: memory full
330: SMSC address unknown
331: no network service
332: network timeout
340: no +CNMA acknowledgement expected
500: unknown error
...511: other values in range 256...511 are reserved
512...: manufacturer specific
15.4 Final Result Codes
Final Result Code
No.
Description
OK
0
A command is executed, and there is
no error.
CONNECT
1
A connection is established.
RING
2
An incoming call is originated.
NO CARRIER
3
A connection is terminated.
ERROR
4
There is a common error.
NO DIALTONE
6
There is no dialing tone.
BUSY
7
The peer is busy.
NO ANSWER
8
Timeout occurs when the connection is
complete, and there is no reply.
+CME ERROR: <err>
The error type is specified by <err>.
+CMS ERROR: <err>
It is a short message-related error.
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Note:
The final result code is the termination flag of an AT command.
15.5 Initial Values of Command Parameters After MT
Startup
The following table lists the initial values of the interface parameters mentioned in this
document during MT startup.
Command
Initial Value
+CPMS
All of <mem1>, <mem2>, and <mem3> are "SM".
+CGDCONT
Obtained from the NV memory after reboot.
+CSCA
<sca>=null, <tosca>=null. The AT+CSCA? command shall be
used to obtain the SMSC number from the SIM.
+CSMS
<service>=0
+CMGF
<mode>=0
+CNMI
All of <mode>, <mt>, <bm>, <ds>, and <bfr> are zero.
+COPS
<mode>=0, <format>=0
+CREG
<n>=2
+CGREG
<n>=0
+CFUN
<fun>=1
+CPBS
<storage>="SM"
+CGSMS
<service>=1
15.6 AT Command Timeout Mechanism On the Client
The client on a computer processes AT commands in sequence. Before the response
from the MT is received or the current command times out, no other AT command is
sent to the MT except that Abort is sent to stop abortable commands. For general AT
commands, the timeout period is 30 seconds from the time when the command
arrives at the port. The timeout period for sending messages is 60 seconds. The
timeout period for network searching (AT+COPS=?) is 120 seconds. When an AT
command times out, the client on a computer performs the following operations to
determine whether the MT can properly communicate with the client:
Step 1 Send AT to the MT.
Step 2 If sending data to the port fails, go to step 5.
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Step 3 If the MT returns a success message, the MT can still communicate properly. End this
process.
Step 4 If waiting for the response times out (timeout period is 3 seconds), go to step 1. If
waiting for the response times out for the third time, go to step 5.
Step 5 The MT does not exist or is unavailable. Close the current port, stop sending all AT
commands, and end the process to search for the MT again.
15.7 MT Searching Mechanism On the Client
If the MT is connected to a computer and the MT driver is correctly installed, a number
of ports with different functions on the computer will be mapped to the MT driver. Each
port has a unique port number, a port name, and a unique class GUID in the
computer's operating system.
The AT command +CGMM is used to request the MT model. The client searches for the
MT periodically (currently every one second). If no MT is found in the first attempt, the
second attempt begins after 0.1 seconds. If no MT is found in the second attempt, the
third attempt begins after 0.2 seconds. If no MT is found in the third attempt, the client
deems that no MT is connected to the computer. If the MT is found in any of the three
attempts, the client exits the searching. If the MT state is changed (connected or
disconnected, for example), the client can detect this change in a short time.
In Windows, the client uses standard Windows API to search for the MT in the
following manner: 1. Search for all the MTs using the same class GUID.
2. Enumerate the MTs one by one.
3. Get the ID string of the MT name from each MT.
4. Find the parent node of the MT.
5. Open the key of the MT in the registry.
6. Get the port number of the MT.
A valid ID string of the MT name is set in the configuration file. The client discards the
MTs without such configuration. The following lists the valid name strings:
1.
MTs at the PCUI port:
HUAWEI Mobile Connect - 3G PC UI Interface
V710 - 3G PC UI Interface
2.
MTs at the DIAG port:
HUAWEI Mobile Connect - 3G Application Interface
V710 - 3G Application Interface
3.
MTs at the MODEM port:
HUAWEI Mobile Connect - 3G Modem
V710 - 3G Modem
The client deems that the MTs at the PCUI port uses AT commands in communication
and the MTs at the DIAG port uses DIAG commands. By default, the MTs at the
MODEM port use AT commands in communication.
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The client tries to communicate with an MT using the AT protocol first. If the
communication fails, the client tries the DIAG protocol. If the communication still fails,
the client deems that the MT is not available, and will discard it without any processing.
The client does not test the communication protocol for the MTs at the MODEM port.
15.8 MT Usage Mechanism On the Client
15.8.1 MTs Already Connected to the Computer

Case 1: Only one MT is connected to the computer.
The client on the computer finds the MT and immediately uses the MT. When the
MT is unavailable or disconnected, the client immediately terminates all
operations on the MT.

Case 2: Two MTs are connected to the computer.
After finding the MTs, the client requests the user to select one. After the user
have selected one of the MTs, the client starts to use it. When the selected MT is
unavailable or disconnected, the client immediately uses the other one.

Case 3: Three or more MTs are connected to the computer.
After finding the MTs, the client requests the user to select one. After the user
have selected one of the MTs, the client starts to use it. When the MT in use is
unavailable or disconnected (or more than one MT are disconnected), if two or
more MTs are still connected and available, the client requests the user to select
one of them; if only one MT is still connected, the client automatically switches to
use the remaining MT. If all MTs are disconnected or unavailable, the client stops
all operations.
15.8.2 Client Started Before MTs Are Connected

One MT is connected to the computer.
The client handles the MT as in case 1 in section 15.8.1

Two MTs are connected to the computer.
The client handles the MTs as in case 2 in section 15.8.1

Three or more MTs are connected to the computer.
The client handles the MTs as in case 3 in section 15.8.1
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15.9 Process for the Client to Initialize the MT
Start
Search for MTs
Prompt that no MT
is available
N
Is any MT available?
Y
Check the communications
protocol used by the MT
Obtain the MT's
product name
Are more than one
MT available?
N
Y
User selects an MT
Initialize and use
the selected MT
End
Process of detecting MTs
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Start
MT's standards
ROM-UIM
N
SIM card exist?
Y
N
Request SIM
card password?
Y
N
Y
Prompt that no
SIM card exists
Verify PUK
N
Verify PIN
Y
CARDLOCK
N
Y
N
N
Y
Unlock CARDLOCK
Y
Set the MT's default values
required by the client
Read the product's
configuration file
Configure the
SIM card phonebook's
configuration file
N
Y
Configure the
SIM card phonebook's
configuration file
Configure the
NV card phonebook's
configuration file
N
Y
Configure the
NV card phonebook's
configuration file
End
Initialization process
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Start
Stop the MT from sending
BOOT: AT^BOOT=,00
Select default
Phonebook storage
Select default
message storage
Set the result code mode
: AT+CMEE=1
Obtain product name
Set command echo
: AT EO
Set MT to normal state
check whether
SIM card exists
Set calling line identification
Presentation: AT+CLIP=1
Enable call waiting
: AT+CCWA=1
Set new message indications
: AT+CNMI=2,1,0,2,0
Obtain message format from the
MT’s configuration file
DEVICEINFO.XML or the default
configuration,and set the message
format: AT+CGREG=1
Set CS domain unsolicited
result code: AT+CREG=1
Set PS domain unsolicited
result code: AT+CGREG=1
Configure theSIM card
Phonebook’s and NV memory
Phonebook’s configuration files
End
Process of setting client operating environment
Notes:

AT^BOOT, AT+CLIP, AT+CCWA are not supported by the MU736 module.

The definition of ATE can see 3GPP TS 27.007.
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15.10 Segmentation and Concatenation of Long Messages
15.10.1 Segmentation and Concatenation Mechanism
In PDU mode, messages can be encoded using three coding schemes: 7-bit, 8-bit,
and UCS2 coding. The 7-bit coding is used to encode common ASCII characters. It
encodes a string of 7-bit characters (with 0 at the high order bit) into 8-bit data. Every
8 characters are compressed into 7. The 8-bit coding is used to encode data
messages, such as pictures and ringtones. The UCS2 coding is used to encode
Unicode characters. As specified in the current protocol, the maximum length of user
data (TP-UD field) in a PDU packet is 140 octets. Therefore, the maximum size of a
messages encoded using 7-bit, 8-bit or UCS2 coding scheme is 160, 140 or 70
characters respectively. If it is datacard, regardless of a message's content and
character type, the message will be segmented if its number of characters exceeds
the maximum size; if it is module, error will be returned. When calculating the
message size, an English letter, a Chinese character or a data byte is considered as
one character.
In PDU mode, according to the current protocol, after a long message is segmented
into several messages, the maximum size of a segment message is:

153 characters for 7-bit coding.

134 characters for 8-bit coding.

67 characters for UCS2 coding.
The maximum sizes of segment messages are smaller than those of non-segment
messages for all the three coding schemes because some characters are used as
segmentation information.
For 7-bit, 8-bit and UCS2 coding, a character consists of 7 bits, 8 bits and 16 bits
respectively. Therefore, a segment message of a long message occupies 1071 (153 x
3) bits, 1072 (134 x 8) bits and 1072 (67 x 16) bits in message memory, so the
maximum length is 1072 bits. The maximum length of the memory space occupied by
a short message is 1120 bits for all the three coding schemes. If a message's size is
larger than 1120 bits, the message is a long message.
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7-bit Character set
8-bit Character set
UCS2 Character set
Relationship between the character sets
When analyzing a message, characters of the message content will be read one by
one and included in a string. Each time after a character is included in the string, the
string will be analyzed to determine an encoding scheme that requires the smallest
memory size for storing the string after encoding. If the memory size exceeds 1120
bits, the message is a long message and must be segmented. Then, every 1072 bits
of message content will be converted to a segment message. Each segment
message will be encoded using the optimal encoding scheme that allows the
maximum characters to be contained in that message. This method provides the
following benefits:

Smallest number of segment messages for one long message

Maximum memory utilization

Lowest messaging charges
15.10.2 Concatenation Mechanism
There are two types of protocol header in the TP-UD field of a PDU:
1.
6-byte header, for example, 05 00 03 XX MM NN.
Byte 1: 05, indicating the length of the remaining header.
Byte 2: 00, indicating that the segment messages after this header have one byte
of message ID (XX in 05 00 03 XX MM NN), as specified in sections 9.2.3.24.1 of
the GSM 03.40 standard.
Byte 3: 03, indicating the length of the remaining header.
Byte 4: XX, unique message ID. Practically, it is not important whether this ID is
unique, because SME (mobile phone or SP) will reallocate the ID after
concatenating the segment messages.
Byte 5: MM, indicating the number of segment messages generated after a long
text is segmented. For example, if a long text message is segmented to 5
segment messages, this value is 5.
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Byte 6: NN, indicating the segment message's number. For example, if this
segment message is the first segment message among the messages generated
after the long message is segmented, this value is 1.
For example, 05 00 03 39 02 01.
2.
7-byte header, for example, 06 08 04 XX XX MM NN.
Byte 1: 06, indicating the length of the remaining header.
Byte 2: 08, indicating that the segment messages after this header have two
bytes of message ID (XX XX in 06 08 04 XX XX MM NN), as specified in sections
9.2.3.24.1 of the GSM 03.40 standard.
Byte 3: 04, indicating the length of the remaining header.
Bytes 4 and 5: XX XX, unique message ID. Practically, it is not important whether
this ID is unique, because SME (mobile phone or SP) will reallocate the ID after
concatenating the segment messages.
Byte 6: MM, indicating the number of segment messages generated after a long
text is segmented. For example, if a long text message is segmented to 5
messages, this value is 5.
Byte 7: NN, indicating the segment message's number. For example, if this
segment message is the first message among the messages generated after the
long message is segmented, this value is 1.
For example, 06 08 04 00 39 02 01.
The interval between the reception of two subsequent segment messages of the
same long message must not exceed 60 seconds. The interval between the
reception of the first and last segment messages must not exceed 24 hours. Each
segment messages of the same long message have the same sender and a
protocol header. Based on the previous information, a long message is
concatenated.
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15.11 Network Searching Flowcharts
15.11.1 Automatic Login
TE
MS
1 Set the automatic
network searching mode
AT+COPS=0
OK
+CREG:2
2 Network searching in
progress indication
+CREG:n
3 Network searching
end indication
AT+COPS?
4 In case of successful
registration: Obtain the
network’s PLMN ID
+COPS……
Automatic network searching flowchart
15.11.2 Manual Login
TE
MS
1
Obtain available
operator list
2
Present operator
information
3
Select an operator
4
Network searching
in progress indication
+CREG:n
5
Network searching
end indication
AT+COPS?
6
In case of successful
registration: Obtain the
network’s PLMN ID
AT+COPS=0
+COPS
OK
AT+COPS=1,2,46000
OK
+CREG:2
Manua l network searching flowchart
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15.11.3 Phonebook Information Reading Process
TE
MS
AT+COPS
1
Select phonebook
storage
2
Read phonebook
storage index range
OK
AT^CPBR=?
OK
3 Read phonebook entries
according to the index range
AT^CPBR=1,50
^CPBR=1,”139”,129,”TOM”,0
……
^CPBR=50,”138”,129,”Jerry”,0
4
Return entries one
by one
1
Select phonebook
storage
2
Read phonebook
storage index range
OK
Phonebook information reading progress 1
TE
MS
AT+CPBS
OK
AT^CPBR=?
OK
AT^CPBR=1,50
+CME ERROR:,22
3 Read phonebook entries
according to the index range
4
No entries within the
index range
Phonebook information reading progress 2
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15.12 SIM Lock Solution
Start
N
SIM Card
Enable PIN
Y
N
Unlock PIN
N
Y
Read the MT’s
configuration file
N
Does the MT
support SIM lock?
Y
N
Initialize
the MT
SIM lock enabled?
Y
Read the customization
configuration file
Y
Unlocked?
Unlock
Warning
No
Warning
Exit
N
Allow users to use
local resources and
other available resources
End
15.13 References
[1] 3GPP TS 23.038
[2] 3GPP TS 23.040
[3]3GPP TS 23.041
[4] 3GPP TS 24.011
[5] 3GPP TS 25.331
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[6] 3GPP TS 27.005-320
[7] 3GPP TS 27.007-3d0
[8] 3GPP TS 31.111
[9] 3GPP TS 44.060
[10] 3GPP TS 45.008
[11] GSM 02.88
[12] GSM 03.40
[13] GSM 04.08
[14] GSM 07.05
[15] GSM 51.011
[16] ETSI TS 102.221
[17] ETSI TS 102.223
[18] HUAWEI Terminal AT Command Interface Specifications
[19] ITU-T Recommendation V.25 ter
15.14 Acronyms and Abbreviations
Abbreviations
Full spelling
3GPP
Third Generation Partnership Project
AT
ATtention
APN
Access Point Name
BER
Bit error rate
CDMA
Code Division Multiple Access
CLIP
Call Line Identifier presentation
CS
Circuit Switched (CS) domain
DCS
Data coding scheme
EGPRS
Enhanced GPRS
E-UTRAN
Evolved UTRAN
GGSN
Gateway GPRS Support Node
GPRS
General Packet Radio Service
GSM
Global System for Mobile Communications
HSDPA
High Speed Downlink Packet Access
HSUPA
High Speed Uplink Packet Access
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Abbreviations
Full spelling
IMEI
International Mobile Equipment Identity
IP
Internet Protocol
ITU-T
International Telecommunication Union-Telecommunication
Standardization Sector
IWF
Interworking Function
ME
Mobile Equipment
MS
Mobile Station
MSISDN
Mobile Station International ISDN Number
MT
Mobile Terminal
PDP
Packet Data Protocol
PDU
Protocol Data Unit
PIN
Personal Identity Number
PLMN
Public land mobile network
PUK
PIN Unblocking Key
PS
Packet Switched (PS) domain
RP
Relay Protocol
RSSI
Receive signal strength indicator
SCA
Service Center Address
SIM
GSM Subscriber Identity Module
SM
Short message
SMS
Short Message Service
SMSC
Short Message Service Center
TA
Terminal Adapter
TE
Terminal Equipment
TPDU
Transfer Protocol Data Unit
URC
Unsolicited result code
USIM
Universal Subscriber Identity Module
USSD
Unstructured Supplementary Service Data
UTRAN
Universal Terrestrial Radio Access Network
VP
Validity Period
WCDMA
Wideband CDMA
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