Grandstream Networks, Inc.
GXP2120/GXP2110/GXP2100/GXP14xx
SIP Enterprise Phones
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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GXP2120/GXP2110/GXP2100/GXP14xx User Manual
Table of Content
GUI INTERFACE EXAMPLES .................................................................... 5
GNU GPL INFORMATION .......................................................................... 6
CHANGE LOG ........................................................................................... 7
FIRMWARE VERSION 1.0.6.11 ............................................................................................................ 7
FIRMWARE VERSION 1.0.6.7 .............................................................................................................. 7
FIRMWARE VERSION 1.0.5.58 ............................................................................................................ 7
FIRMWARE VERSION 1.0.5.32 ............................................................................................................ 7
FIRMWARE VERSION 1.0.5.26 ............................................................................................................ 8
FIRMWARE VERSION 1.0.5.24 ............................................................................................................ 8
FIRMWARE VERSION 1.0.5.15 ............................................................................................................ 8
FIRMWARE VERSION 1.0.4.23 ............................................................................................................ 8
FIRMWARE VERSION 1.0.4.9 .............................................................................................................. 9
WELCOME ............................................................................................... 11
PRODUCT OVERVIEW ............................................................................ 13
FEATURE HIGHTLIGHTS ................................................................................................................... 13
GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS ........................................ 14
INSTALLATION ........................................................................................ 17
EQUIPMENT PACKAGING ................................................................................................................. 17
CONNECTING YOUR PHONE ........................................................................................................... 17
GXP2120/GXP2110 EXTENSION MODULE....................................................................................... 18
SAFETY COMPLIANCES .................................................................................................................... 20
WARRANTY......................................................................................................................................... 20
USING THE GXP2120/GXP2110/GXP2100/GXP14xx ............................. 21
GETTING FAMILAR WITH THE LCD .................................................................................................. 21
GETTING FAMILAR WITH THE KEYPAD ........................................................................................... 27
MAKING PHONE CALLS..................................................................................................................... 28
HANDSET, SPEAKER AND HEADSET MODE ........................................................................... 28
MULTIPLE SIP ACCOUNTS AND LINES ..................................................................................... 28
COMPLETING CALLS.................................................................................................................. 29
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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MAKING CALLS USING IP ADDRESSES ................................................................................... 31
ANSWERING PHONE CALLS ............................................................................................................ 32
RECEIVING CALLS...................................................................................................................... 32
DO NOT DISTURB ....................................................................................................................... 32
DURING A PHONE CALL .................................................................................................................... 33
CALL WAITING/CALL HOLD ....................................................................................................... 33
MUTE ............................................................................................................................................ 33
CALL TRANSFER ........................................................................................................................ 33
5-WAY CONFERENCING/3-WAY CONFERENCING .................................................................. 34
VOICE MESSAGES (MESSAGE WAITING INDICATOR) ........................................................... 36
SHARED CALL APPEARANCE (SCA) ........................................................................................ 37
INSERTING PAUSE INTO SPEED DIALS AND PHONEBOOK ENTRIES ................................. 37
CALL FEATURES ................................................................................................................................ 38
CUSTOMIZED LCD SCREEN & XML ................................................................................................. 40
CONFIGURATION GUIDE........................................................................ 41
CONFIGURATION VIA KEYPAD ......................................................................................................... 41
CONFIGURATION VIA WEB BROWSER ........................................................................................... 46
DEFINITIONS ...................................................................................................................................... 47
STATUS PAGE DEFINITIONS ..................................................................................................... 47
ACCOUNTS PAGE DEFINITIONS ............................................................................................... 48
SETTINGS PAGE DEFINITIONS ................................................................................................. 57
NETWORK PAGE DEFINITIONS ................................................................................................. 65
MAINTENANCE PAGE DEFINITIONS ......................................................................................... 67
PHONEBOOK PAGE DEFINITIONS ............................................................................................ 70
NAT SETTINGS ................................................................................................................................... 72
WEATHER UPDATE ............................................................................................................................ 73
PUBLIC MODE .................................................................................................................................... 74
EDITING CONTACTS AND CLICK-TO-DIAL ...................................................................................... 74
SAVING THE CONFIGURATION CHANGES...................................................................................... 76
REBOOTING FROM REMOTE LOCATIONS...................................................................................... 76
UPGRADING AND PROVISIONING ........................................................ 77
UPGRADE VIA KEYPAD MENU ......................................................................................................... 77
UPGRAGE VIA WEB GUI .................................................................................................................... 77
NO LOCAL TFTP/HTTP SERVERS .................................................................................................... 77
CONFIGURATION FILE DOWNLOAD ................................................................................................ 78
RESTORE FACTORY DEFAULT SETTINGS ........................................... 79
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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EXPERIENCING THE GXP2120/GXP2110/GXP2100/GXP14xx.............. 81
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 3 of 81
Table of Tables
GXP2120/GXP2110/GXP2100/GXP14xx User Manual
Table 1: GXP2120/GXP2110/GXP2100/GXP14xx FEATURES IN A GLANCE .......................................... 13
Table 2: GXP2120/GXP2110/GXP2100/GXP14xx COMPARISON GUIDE ................................................ 14
Table 3: GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS ................................. 14
Table 4: GXP2120/GXP2110/GXP2100/GXP14xx EQUIPMENT PACKAGING ......................................... 17
Table 5: GXP2120/GXP2110/GXP2100/GXP14xx CONNECTORS ........................................................... 17
Table 6: LCD DISPLAY DEFINITIONS........................................................................................................ 21
Table 7: GXP2120/GXP2110/GXP2100/1450 LCD ICONS ........................................................................ 24
Table 8: GXP140x LCD ICONS .................................................................................................................. 26
Table 9: KEYPAD DEFINITIONS ................................................................................................................ 27
Table 10: CALL FEATURES ........................................................................................................................ 39
Table 11: CONFIGURATION MENU ........................................................................................................... 41
Table of Figures
GXP2120/GXP2110/GXP2100/GXP14xx User Manual
Figure 1: GXP2120/GXP2110/GXP2100/GXP14xx Pin-out ....................................................................... 18
Figure 2: GXP2120/GXP2110 EXT Board Connection ............................................................................... 19
Figure 3: Soft pause for speed dial ............................................................................................................. 38
Figure 4: Soft pause for phonebook entry ................................................................................................... 38
Figure 5: Keypad MENU Flow..................................................................................................................... 45
Figure 6: Web GUI - Phonebook->Contacts ............................................................................................... 76
Figure 7: Click-to-Dial.................................................................................................................................. 76
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 4 of 81
GUI INTERFACE EXAMPLES
http://www.grandstream.com/products/gxp_series/general/documents/gxp21xx_gui.zip
1. Screenshot of Login Page
2. Screenshots of Status Pages
3. Screenshots of Accounts Pages
4. Screenshots of Settings Pages
5. Screenshots of Network Pages
6. Screenshots of Maintenance Pages
7. Screenshots of Phonebook Pages
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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GNU GPL INFORMATION
GXP2120/GXP2110/GXP2100/GXP14xx firmware contains third-party software licensed under the GNU
General Public License (GPL). Grandstream uses software under the specific terms of the GPL. Please
see the GNU General Public License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
http://www.grandstream.com/support/faq/gnu_gpl.
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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CHANGE LOG
This
section
documents
significant
changes
from
previous
versions
of
user
manuals
for
GXP2120/GXP2110/GXP2100/GXP14xx. Only major new features or major document updates are listed
here. Minor updates for corrections or editing are not documented here.
FIRMWARE VERSION 1.0.6.11

Added phone power special feature to GXP14xx. [ ACCOUNTS PAGE DEFINITIONS]

Added support for inserting pauses into speed dials and phone book entries. [INSERTING PAUSE
INTO SPEED DIALS AND PHONEBOOK ENTRIES]

Added support for Svenska language.

Added “PC port VLAN Tag” under Network setting. [NETWORK PAGE DEFINITIONS]

Added “PC port Priority Value” under Network setting. [NETWORK PAGE DEFINITIONS]

Added “Date Time” setting under Preference setting on menu. [CONFIGURATION VIA KEYPAD]
FIRMWARE VERSION 1.0.6.7

No new feature added.
FIRMWARE VERSION 1.0.5.58

Added “3CX Auto Provision” under Maintenance. [MAINTENANCE PAGE DEFINITIONS]

Added “Second Dial Tone” under Settings. [SETTINGS PAGE DEFINITIONS]

Added “Sort Phonebook by” under Phonebook Management. [PHONEBOOK PAGE DEFINITIONS]

Added “Public Mode Login Expiration” under Settings. [SETTINGS PAGE DEFINITIONS]

Added “Hold Method” under Account setting. [ACCOUNTS PAGE DEFINITIONS]

Added “Crypto Life Time” under Account setting.[ACCOUNTS PAGE DEFINITIONS]

Added “UCM Connection” under LCD Main menu.[CONFIGURATION VIA KEYPAD]
FIRMWARE VERSION 1.0.5.32

Added “Web Access Mode” under Security setting. [SECURITY]

Replaced “Disable Telnet” under Web Access by “Disable SSH” under Security setting page.
[SECURITY]
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 7 of 81
FIRMWARE VERSION 1.0.5.26

Updated “Use Phonebook Key for LDAP Search” under LDAP settings to “Phonebook Key function”
under Phonebook Management settings. [PHONEBOOK PAGE DEFINATION]
FIRMWARE VERSION 1.0.5.24

Updated TFTP server download link for 1.0.5.24, [NO LOCAL TFTP/HTTP SERVERS]

Added “Enable Idle Mute” feature in Call Features. [CALL FEATURES]

Added “Enable LLDP” feature under Network Advanced Settings.[NETWORK PAGE DEFINITIONS]
FIRMWARE VERSION 1.0.5.15

Updated Web GUI interface examples with new screenshots for 1.0.5.15. [GUI INTERFACE
EXAMPLES]

Merged GXP140x user manual content in this manual.

Add pin-out information. [Figure 1: GXP2120/GXP2110/GXP2100/GXP14xx Pin-out]

Updated Auto Attended Transfer information. [CALL TRANSFER]

Modified Public Mode information. [PUBLIC MODE]

Updated Click-To-Dial feature information. [EDITING CONTACTS AND CLICK-TO-DIAL]

Updated Keypad MENU options and Keypad configuration flow. [CONFIGURATION VIA KEYPAD]

Updated Web GUI options. Added options "Music On Hold URI", "Authenticate Incoming INVITE",
"Click-To-Dial Feature", "Call-Waiting Tone Gain", "Accept Incoming SIP from Proxy Only", "Caller ID
Display", "Broadsoft Call Center", "Hoteling Event", "Call Center Status", "PUBLISH to Call Center",
"Use First Matching Vocoder in 200OK SDP", "DND Call Feature On" and "DND Call Feature Off".
[DEFINITIONS]
FIRMWARE VERSION 1.0.4.23

Updated XML Application documentation link. [CUSTOMIZED LCD SCREEN & XML]

Added "Use Privacy Header" and "Use P-Preferred-Identity Header" options in web GUI. [ACCOUNTS
PAGE DEFINITIONS]

Added Date Display Format options in web GUI. [SETTINGS PAGE]

Added "Use Phonebook Key for LDAP Search" option in web GUI. [MAINTENANCE PAGE]

Added customize city code information for weather update feature. [WEATHER UPDATE]

Updated generic config file cfg.xml information. [CONFIGURATION FILE DOWNLOAD]
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 8 of 81
FIRMWARE VERSION 1.0.4.9

Added instructions for connecting the phone. [CONNECTING YOUR PHONE]

Updated Keypad MENU options and Keypad configuration flow. [CONFIGURATION VIA KEYPAD]

Added Line Key options Speed Dial, Dial DTMF, Call Return, Transfer, Voice Mail, Intercom, Call Park,
LDAP Search, and etc. [SETTINGS PAGE]

Added Multi Purpose Key options Voice Mail, Call Park, LDAP Search, and etc. [SETTINGS PAGE]

Added IPv6 configuration options. [SETTINGS PAGE]

Added LDAP options information. [MAINTENANCE PAGE]

Added Public Mode information for hot desking feature. [PUBLIC MODE]

Added NAT setting information. [NAT SETTINGS]

Added Matching Incoming Caller ID function in Account Setting. [ACCOUNTS PAGE DEFINITIONS]

Added Editing Contacts and Click-to-Dial information. [EDITING CONTACTS AND CLICK-TO-DIAL]

Added GNU GPL information. [GNU GPL INFORMATION]

Added Change Log for this user manual.

Merging GXP1450 User Manual content with GXP2120/GXP2110/GXP2100 User Manual.
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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WELCOME
Thank you for purchasing Grandstream GXP2120/GXP2110/GXP2100/GXP14xx SIP Enterprise Phones.
Your Grandstream GXP2120/GXP2110/GXP2100/GXP14xx Enterprise IP phone is feature-enriched,
sophisticated, yet simple to use. It delivers superior HD audio quality, rich and leading edge telephony
features, personalized information and customizable application service, automated provisioning for easy
deployment, advanced security protection for privacy, and broad interoperability with most 3rd party SIP
devices and leading SIP/NGN/IMS platforms.
The GXP2120/GXP2110/GXP2100/GXP14xx supports a broad range of codecs, security protection, PoE,
dual 10/100Mbps Ethernet ports, along with customizable XML provisioning and application
features. Users can expect superior audio quality using the new high definition handset, hands-free
speakerphone,
or
headset.
Also,
it
can
support
up
to
5-way
conferencing
for
GXP2120/GXP2110/GXP2100 and 3-way conferencing for GXP14xx, multi-languages and dual-color
LEDs. The GXP2120/GXP2110/GXP2110 supports presence and Busy Lamp Field (BLF) in the Multi
Purpose Keys as well. It presents a large easy-to-read backlit graphical display along with multiple XML
keys to further enhance the user experience. Additionally, the GXP2120/2110 is expandable with one to
two expansion modules.
The GXP2120/GXP2110/GXP2100/GXP14xx is a perfect choice for enterprise users looking for a high
quality, feature rich multi-line IP phone with the best values.
Caution:
Changes or modifications to this product not expressly approved by Grandstream, or operation of this
product in any way other than as detailed by this User Manual, could void your manufacturer warranty.
Warning:
Please do not use a different power adaptor with the GXP2120/GXP2110/GXP2100/GXP14xx as it may
cause damage to the products and void the manufacturer warranty.
This document is subject to change without notice. The latest electronic version of this user manual is
available for download here:
http://www.grandstream.com/support
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 11 of 81
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for
any purpose without the express written permission of Grandstream Networks, Inc. is not permitted.
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 12 of 81
PRODUCT OVERVIEW
FEATURE HIGHTLIGHTS
Table 1: GXP2120/GXP2110/GXP2100/GXP14xx FEATURES IN A GLANCE
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
FIRMWARE VERSION 1.0.6.11

6 lines

7 programmable Multi Purpose Keys

4 XML programmable soft keys

XML Application

XML Idle Screen Customization

4 lines

18 programmable Multi Purpose Keys

3 XML programmable soft keys

XML Application

XML Idle Screen Customization

4 lines

7 programmable Multi Purpose Keys

3 XML programmable soft keys

XML Application

XML Idle Screen Customization

2 lines

3 XML programmable soft keys

XML Idle Screen Customization

2 lines

3 XML programmable soft keys

XML Idle Screen Customization
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 13 of 81
Table 2: GXP2120/GXP2110/GXP2100/GXP14xx COMPARISON GUIDE
Features
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
LCD Display
320x160 pixel
240x120 pixel
180x90 pixel
180x60 pixel
128x40 pixel
LCD Backlight
Yes
Yes
Yes
Yes
No
6
4
4
2
2
7
18
7
N/A
N/A
4
3
3
3
3
Yes,
Yes,
up to 2 EXT Boards,
up to 2 EXT Boards,
N/A
N/A
N/A
56 nodes each
56 nodes each
Number of
Lines
Programmable
Hard Keys
Programmable
Soft Keys
Extension
Module
GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS
Table 3: GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A
record, SRV, NAPTR), DHCP, PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, TR-069,
802.1X, LLDP, LLDP-MED, LDAP, IPv6, TLS, SRTP
Protocols and
Standards
SIP PUBLISH method (RFC3903), SIP Presence Package (RFC3856, 3863) for use of
MPKs, SIP Dialog Package (RFC4235), SIP Message method (RFC3428)
Note:
MPKs are not applicable to GXP14xx.
Network
Dual switched 10/100Mbps port
Interfaces
Integrated PoE for GXP2120/GXP2110/GXP2100/GXP1450/GXP1405
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 14 of 81
LCD size and backlight:
Graphic Display
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
320x160 pixel
240x120 pixel
180x90 pixel
180x60 pixel
128x40 pixel
Backlight
Backlight
Backlight
Backlight
No Backlight
Feature key comparison:
Feature Keys
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
HOLD
Yes
Yes
Yes
Yes
Yes
SPEAKER
Yes
Yes
Yes
Yes
Yes
SEND
Yes
Yes
Yes
Yes
Yes
TRANSFER
Yes
Yes
Yes
Yes
Yes
CONF
Yes
Yes
Yes
Yes
Yes
MUTE
Yes
Yes
Yes
Idle: DND
Idle: DND
DND
Yes
Yes
No
Talk: MUTE
Talk: MUTE
HEADSET
Yes
Yes
Yes
Yes
Yes
INTERCOM
Yes
Yes
Yes
No
No
PHONEBOOK
Yes
Yes
Yes
Yes
No
MSG
Yes
Yes
Yes
Yes
No
MENU
Yes
Yes
Yes
Yes
Yes
NAVIGATION
Yes
Yes
Yes
Yes
Yes
Note:
GXP14xx uses the same key for DND/MUTE by default. When the phone is in idle, the
key will be used as DND. When the phone is in talking status, the key will be used as
MUTE.
Voice Codec
Support for G.723.1, G.729A/B, G.711u/a, G.726-32, G.722 (wide-band), iLBC, in-band
and out-of-band DTMF (in audio, RFC2833, SIP INFO)
Hold, transfer, forward, up to 5-way conference for GXP2120/GXP2110/GXP2100, up to
3-way
conference
for
GXP14xx,
call
park,
pickup,
shared-call-appearance
(SCA)/bridged-line-appearance (BLA), downloadable phone book (XML, LDAP, up to
Telephony
2000 items for GXP2120/GXP2110/GXP2100, up to 500 items for GXP14xx), call waiting,
Features
call log (up to 2000 records for GXP2120/GXP2110/GXP2100, up to 500 records for
GXP14xx), XML customization of idle screen, off-hook auto dial, auto answer,
click-to-dial, flexible dial plan, hot desking, personalized music ringtones, server
redundancy and fail-over
HD Audio
Yes, HD handset with support for wideband audio
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 15 of 81
Headset Jack
For GXP2120/GXP2110/GXP2100/1450: 2.5mm and RJ9 headset jack;
For GXP140x: RJ9 headset jack only
Base Stand
Yes, 2-angle positions available
Wall Mountable
Yes
EXT Board
GXP2120/GXP2110 only
QoS
Layer 2 (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security
Multi-language
User and administrator level passwords, MD5 and MD5-sess based authentication,
256-bit AES encrypted configuration file, TLS, SRTP, 802.1X media access control
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Simplified
Chinese, Traditional Chinese, Korean, Japanese, Svenska and etc
Upgrade and
Firmware upgrade via TFTP/HTTP/HTTPS, mass provisioning using TR-069 or AES
Provisioning
encrypted XML configuration file
Universal power adapter:
Power and
Input: 100-240VAC 50-60Hz; Output: 5VDC, 800mA
Green Energy
(GXP2100 only) Input: 100-240VAC 50-60Hz; Output: 5VDC, 800mA or 5VDC, 1200mA
Efficiency
Integrated Power-over-Ethernet (Built-in auto-sensing: Cisco and IEEE 802.3af standard)
Max power consumption 2.5W (power adapter) or 3W (PoE)
Dimension
Physical
Unit
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
251mm(W)
252mm (W)
222mm (W)
186mm (W)
186mm (W)
202mm(L)
210mm (L)
210mm (L)
210mm (L)
210mm (L)
77mm(H)
78mm (H)
93mm (H)
81mm (H)
81mm (H)
1.08KG
1.08KG
0.98KG
0.8KG
0.7KG
1.78KG
1.78KG
1.63KG
1.3KG
1.1KG
Weight
Package
Weight
Operating
o
o
32-104 F / 0-40 C, 10-90% (non-condensing)
Temperature
and Humidity
Package
GXP2120/GXP2110/GXP2100/GXP14xx phone, handset with cord, base stand, wall
Content
mount spacers, universal power supply, network cable, quick start guide
FCC Part 15 (CFR 47) Class B; EN55022 Class B, EN55024, EN61000-3-2,
Compliance
EN61000-3-3, EN60950-1; AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, RoHS; UL
60950 (power adapter)
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 16 of 81
INSTALLATION
EQUIPMENT PACKAGING
Table 4: GXP2120/GXP2110/GXP2100/GXP14xx EQUIPMENT PACKAGING
Main Case
Yes
1
Handset
Yes
1
Phone Cord
Yes
1
Power Adaptor
Yes
1
Ethernet Cable
Yes
1
Phone Stand
Yes
Wall Mount Spacers
Yes
2
Quick Start Guide
Yes
1
2 for GXP2120/GXP2110/GXP2100/1450;
1 for GXP140x
CONNECTING YOUR PHONE
Table 5: GXP2120/GXP2110/GXP2100/GXP14xx CONNECTORS
Handset Port
RJ9
Headset Port
2.5mm and RJ9 for GXP2120/GXP2110/GXP2100/1450; RJ9 for GXP140x
LAN Port
10/100Mbps RJ-45 port connecting to Ethernet;
Integrated PoE for GXP2120/GXP2110/GXP2100/GXP1450/GXP1405
PC Port
10/100Mbps RJ-45 port for PC connection
EXT Port
Extension module connection port for GXP2120/GXP2110
Power Jack
5V DC Power connector port
To set up the GXP2120/GXP2110/GXP2100/GXP14xx, follow the steps below:
1. Attach the phone stand or wall mount to the back of the phone where there are slots;
2. Connect the handset and main phone case with the phone cord;
3. Connect the LAN port of the phone to the RJ45 socket of a hub/switch or a router (LAN side of the
router) using the Ethernet cable;
4. Connect the 5V DC output plug to the power jack on the phone; plug the power adapter into an
electrical outlet. If PoE switch is used in step 3 (not applicable to GXP1400), this step could be
skipped;
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 17 of 81
5. The LCD will display provisioning or firmware upgrade information. Before continuing, please wait for
the date/time display to show up;
6. Using the keypad configuration menu or phone's embedded web server (Web GUI) by entering the IP
address in web browser, you can further configure the phone.
Please see below the pin-out information for GXP2120/GXP2110/GXP2100/14xx.
GXP2120/GXP2110/GXP2100/GXP14xx
GXP2120/GXP2110/GXP2100/GXP1450
Handset/Headset Jack
2.5mm Headset Jack
GXP2120/GXP2110/GXP2100/GXP14xx
Handset/Headset Plug
GXP2120/GXP2110/GXP2100/14xx
Power Jack
Figure 1: GXP2120/GXP2110/GXP2100/GXP14xx Pin-out
GXP2120/GXP2110 EXTENSION MODULE
GXP2120/2110 supports two EXT boards, providing up to 112 additional programmable extensions. Each
GXP EXT board has 56 multi-purpose keys, dual color LEDs (red/green) and support BLF (Busy Lamp
Field) and Presence.
GXP2120/2110 EXT board package contains:

1 GXP EXT board

2 connection cables
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GXP2120 with 2 GXP EXT Boards
GXP EXT Board
Reverse side of connection with connection
GXP2120/2110 has a special port on
plate
the back
Figure 2: GXP2120/GXP2110 EXT Board Connection
Connect the first GXP EXT board to the GXP2120/2110 using the connection cable found in the GXP EXT
board package. The first GXP EXT board draws power directly from the phone. Connect the second GXP
EXT board using the connection plate and the connection cable. The GXP2120/2110 will automatically
reboot and power up the GXP EXT boards. Grandstream recommends, though not required, to use a
separate power supply with the second GXP EXT board.
Note:

Should your system lose power, please unplug your devices and power up the GXP2120/2110 first.

EXT board for GXP2120/2110 is the same for GXP2020/2010 models. However, GXP2120/2110 uses
a different-shaped connector for the special port (as shown above). Connection cables will be included
with the EXT board.

EXT board for GXP2120/2110 does not support hot-swap. Once connected, user should reboot the
phone to ensure the setup will work correctly.

GXP2120/2110 can drive 2 EXT boards. Independent power adapters are not needed for the EXT
board.
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SAFETY COMPLIANCES
The GXP2120/GXP2110/GXP2100/GXP14xx phone complies with FCC/CE and various safety standards.
The GXP2120/GXP2110/GXP2100/GXP14xx power adapter is compliant with the UL standard. Use the
universal power adapter provided with the GXP2120/GXP2110/GXP2100/GXP14xx package only. The
manufacturer’s warranty does not cover damages to the phone caused by unsupported power adapters.
WARRANTY
If the GXP2120/GXP2110/GXP2100/GXP14xx phone was purchased from a reseller, please contact the
company where the phone was purchased for replacement, repair or refund. If the phone was purchased
directly from Grandstream, contact the Grandstream Support for a RMA (Return Materials Authorization)
number before the product is returned. Grandstream reserves the right to remedy warranty policy without
prior notification.
Warning:
Use the power adapter provided with the phone. Do not use a different power adapter as this may damage
the phone. This type of damage is not covered under warranty.
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USING THE GXP2120/GXP2110/GXP2100/GXP14xx
GETTING FAMILAR WITH THE LCD
GXP2120/GXP2110/GXP2100/GXP14xx has a dynamic and customizable screen. The screen displays
differently depending on whether the phone is idle or in use (active). The following table describes the
items displayed on the GXP2120/GXP2110/GXP2100/GXP14xx idle screen.
Table 6: LCD DISPLAY DEFINITIONS
DATE AND TIME
Displays the current date and time. It can be synchronized with
Internet time servers.
Displays company logo/name. This logo/name can be customized via
xml screen customization. The maximum size for logo name string is 26
characters in English (approximately).
LOGO
Note:
For GXP140x, only strings can be used for logo name due to LCD
limitation.
NETWORK STATUS
STATUS ICON
Shows the status of network in the middle of the screen. It will indicate
whether the network is down or starting.
Shows the status of the phone for registration status, call features and
etc, using icons as shown in the next table.
Displays the name of the account that is in use.
LINE STATUS INDICATOR
Note:
Line Status Indicator is NOT applicable to GXP140x.
The softkeys are context sensitive and will change depending on the
status of the phone. Typical functions assigned to softkeys are:
SOFTKEYS in Idle Screen

SwitchSCR/NEXTSCR
Toggles between different idle screens. For example, for
GXP2120/GXP2110/GXP2100, pressing SwitchSCR will toggle
among default idle screen, weather information, stock information
and currency information; for GXP140x, pressing NEXTSCR will
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toggle among default idle screen, weather information, IP Address
and the SIP extension number.

ForwardAll
Unconditionally forwards the phone line (account 1) to another
phone.

MissedCalls
Shows up unanswered calls to this phone.

Redial
Redials the last dialed number when there is existed dialed call
log.
Note:
If XML application is used for GXP2120/GXP2110/GXP2100, the
softkey for XML application will show up in the default idle screen as
configured.
The softkeys are context sensitive and will change depending on the
call status of the phone. Here are the main softkeys in call screen.

Redial
Redials the last dialed number after off hook when there is existed
call log.

Dial
Dials the call out after off hook and entering the number.
SOFTKEYS in Call Screen

AnswerCall
Answers the incoming call when the phone is ringing.

RejectCall
Rejects the incoming call when the phone is ringing.

EndCall
Ends the active call.

Transfer
Transfer softkey will show up after pressing TRAN button and
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entering transfer target number. Press Transfer softkey to do blind
transfer.

Split
In auto-attended transfer mode, after establishing the second call,
press Split to quit transfer and go back to normal talking status.

ConfCall
Conferences the active calls.

ReConf
Re-establish the conference among the calls on hold.
Call Parking: Please refer to GXE5024/5028 Online User Manual for
more information.

CallPark
When the phone dials out, the Call Park softkey will display on
screen. To park the call, press the "CallPark" softkey and select a
green MPK to park the call on available parking lot.

PickUp
When the phone goes off-hook, the "Pickup" softkey will display on
screen. To pick up the parked call, press the "Pickup" softkey and
select the red MPK where the call is parked for retrieve the call.
SPECIAL SOFTKEYS
(Only for
GXP2120/GXP2110/GXP2100
Call Queue: Please refer to GXE5024/5028 Online User Manual for
when integrated with
more information.
GXE5024/5028)

SignIn
Press this button to sign in to the call queue. If the current account
is included in multiple call queues, agent will be prompted in the
LCD display to select the call queue to join. Press MENU button on
keypad to select OK. Once the agent completely signs in, the agent
will be brought back to the main screen.

SignOut
Press this button to sign out of the call queue. Press MENU button
on keypad to select OK. This will be displayed once the agent is
signed in to the call queue.
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Table 7: GXP2120/GXP2110/GXP2100/1450 LCD ICONS
DND Status.
OFF - Do Not Disturb disabled
ON - Do Not Disturb enabled
Call Forward All Status.
OFF - Call Forward All feature disabled
ON - Call Forward All feature enabled
Call Forward Busy Status.
OFF - Call Forward Busy feature disabled
ON - Call Forward Busy feature enabled
Call Forward No Answer Status.
OFF - Call Forward No Answer feature disabled
ON - Call Forward No Answer feature enabled
Call Forward All and Call Forward No Answer Status.
OFF - Call Forward All and Call Forward No Answer feature disabled
ON - Call Forward All and Call Forward No Answer feature enabled
Keypad Status.
OFF - keypad is unlocked
ON - keypad is locked
Enter Keypad Unlock Password.
Voicemail Status.
OFF - No new voicemail
ON - New voicemail
Instant Message.
OFF - No new instant message
ON - New instant message
Voice Mail and Instant Message.
OFF - No new instant message or voicemail
ON - New instant message and voicemail
Network Status.
OFF - Network connection is up
ON - Network connection is down
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Missed Call Status.
OFF - No missed call
ON - New missed call
Save Call Record Status.
OFF - No saving call record activity
ON - The phone is writing the call records into the flash at the
moment
Waiting For Response.
Please wait for the phone to response before the keypad entry
Handset Status.
OFF - handset on hook
ON - handset off hook
Speaker Status.
OFF - speaker off
ON - speaker on
Headset Status.
OFF - headset off
ON - headset on
Calling Out.
The phone is calling out
Calling In.
Phone is ringing with incoming call
Incoming Call.
The current call is an incoming call
Outgoing Call.
The current call is an outgoing call
Call Failed
Fail to establish call
SRTP Status.
OFF - SRTP is not used
ON - SRTP is used
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MUTE Status.
OFF - No muted
ON - Muted
Call On Hold.
Call Active.
Conference Call.
Core Dump.
Core dump file can be downloaded from phone's Web GUI->Status
page.
Table 8: GXP140x LCD ICONS
Registration Status: Registered.
Registration Status: Not Registered.
Handset Status.
OFF - handset on hook
ON - handset off hook
Speaker Status.
OFF - speaker off
ON - speaker on
Headset Status.
OFF - headset off
ON - headset on
DND Status.
OFF - Do Not Disturb disabled
ON - Do Not Disturb enabled
Call Forward Status.
OFF - Call Forward feature disabled
ON - Call Forward feature enabled
MUTE Status.
OFF - The active call is not muted
ON - The active call is muted
SRTP Status.
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OFF - SRTP is not used
ON - SRTP is used
GETTING FAMILAR WITH THE KEYPAD
The following table describes the buttons used on the GXP2120/GXP2110/GXP2100/GXP14xx keypad.
Table 9: KEYPAD DEFINITIONS
GXP2120/GXP2110/GXP2100
GXP1450
GXP140x
LINE KEYS
LINE KEYS
LINE 1/LINE 2
HOLD
HOLD
HOLD
Definition
Open or switch line;
resume the call on hold.
Place active call on hold,
or resume the call on hold.
Send out the number, or
SEND
redial.
TRANSFER
TRANSFER
TRANSFER
CONF
CONF
CONF
Transfer an active call to
another number.
Establish conference call
with other parties.
During an active call,
MUTE
press to mute or unmute.
Headset.
HEADSET
When the phone is in idle,
press to enable/disable
DND
DND feature.
Paging/Intercom the
INTERCOM
N/A
N/A
configured Intercom User
ID.

Press the 4 navigation
keys to move
NAVIGATION KEYS/MENU
up/down/left/right;

Press the round button
in the center for
MENU/ENTER/OK
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PHONEBOOK
N/A
Phonebook/Contacts.
Volume (For
GXP2100/GXP14xx only).
For GXP2120/GXP2110,
press UP or DOWN button
to adjust the volume when
the phone is on hook.
N/A
Voicemail.
Standard phone keypad.
0 - 9, *, #
Configure key mode and
User ID to use the Multi
MULTI PURPOSE KEYS
N/A
N/A
Purpose key as Speed
Dial, BLF, Call Park and
etc.
MAKING PHONE CALLS
HANDSET, SPEAKER AND HEADSET MODE
The GXP2120/GXP2110/GXP2100/GXP14xx allows users to switch among handset, speaker or headset
when making calls. Press the Hook Switch to switch to handset; press the Headset button to switch to
headset; or press the Speaker button
to switch to speaker.
MULTIPLE SIP ACCOUNTS AND LINES
GXP2120 can support up to 6 independent SIP accounts; GXP2110/GXP2100 can support up to 4
independent SIP accounts; GXP14xx can support up to 2 independent accounts. Each account is capable
of independent SIP server, user and NAT settings. Each of the line buttons is "virtually" mapped to an
individual SIP account. In off hook state, select an idle line and the dial tone will be heard.
To make a call, select the line you wish to use. The corresponding LINE LED will light up in green. The
user can switch lines before dialing any number by pressing the LINE buttons.
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For example: If 2 independent accounts are registered on GXP2120/GXP2110/GXP2100/GXP14xx, when
LINE 1 is pressed, the LINE 1 LED will light up in green. If LINE 2 is pressed, the LINE 2 LED will light up in
green and the subsequent call will be made through SIP account 2.
Incoming calls to a specific account will attempt to use its corresponding LINE if it is not in use. When the
"virtually" mapped line is in use, the phone will flash the other available LINE in red. A line is ACTIVE when
it is in use and the corresponding LED is red.
COMPLETING CALLS
There are several ways to complete a call.

On hook dialing. Enter the number when the phone is on hook and then send out.

When the phone is in idle, enter the number to be dialed out;

Take handset off hook; or
Press Speaker button; or
Press Headset button with headset plugged in; or
Select an available LINE key;


The call will be dialed out.
Off hook and dial. Off hook the phone, enter the number and send out.

Take handset off hook; or
Press Speaker button; or
Press Headset button with headset plugged in; or
Press an available LINE key to activate speaker;


You shall hear dial tone after off hook;

Enter the number;

Press SEND key or # to dial out.
Redial. Redial the last dialed number.

Take handset off hook; or
Press Speaker button; or
Press Headset button with headset plugged in; or
Press an available LINE key to activate speaker; or
When the phone is in idle;


Press SEND key, or the REDIAL softkey.
Via Call History. Dial the number logged in phone's call history.

Press MENU button to bring up the main menu;
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
Enter Call History and select "Answered Calls", "Missed Calls", "Transferred Calls" or "Forwarded
Calls";



Select the entry you would like to call using the navigation arrow keys;

Press SEND button to dial out.
Via Phonebook. Dial the number from the phonebook.

Press MENU button to bring up the main menu;

Select and enter Phonebook;

Select the phonebook entry you would like to call using the navigation arrow key;

Press SEND button to dial the selected contact.
Speed Dial. Dial the number configured as Speed Dial on Line Key.

Go to phone's Web GUI->Settings->Programmable Keys, configure the Line Key's Key Mode as
Speed Dial. Select the account to dial from, enter the Name and User ID (the number to be dialed
out) for the Line Key. Click on "Save and Apply" at the bottom of the Web GUI page;


Off hook the phone, or directly press the Speed Dial key to dial out.
Call Return. Dial the last answered call.

Go to phone's Web GUI->Settings->Programmable Keys, configure the Line Key's Key Mode as
Call Return. Select the account to dial from, no Name or User ID has to be set on for Call Return;


Off hook the phone, or directly press the Call Return key to dial out.
Via Paging/Intercom.

Take handset off hook; or
Press Speaker button; or
Press Headset button with headset plugged in; or
Press an available LINE key to activate speaker;

You shall hear dial tone after off hook;

Press MENU button to switch the call screen from "Dialing" to "Paging";

Enter the number;

Press SEND key or # to dial out.
Note:

After entering the number, the phone waits for the No Key Entry Timeout (Default timeout is 4 seconds,
configurable via Web GUI) before dialing out. Press SEND or # key to override the No Key Entry
Timeout;

If digits have been entered after handset is off hook, the SEND key will works as SEND instead of
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REDIAL;

By default, # can be used as SEND to dial the number out. Users could disable it by setting "User # as
Dial Key" to "No" from Web GUI->Account X->Call Settings;

For Paging/Intercom, if the SIP Server/PBX supports the feature and has Paging/Intercom feature
code set up already, users do not necessarily need toggle to paging mode in the call screen. Simply
dial the feature code with extension as a normal call.

When dial out via paging, user can see the “call-info” header contains “answer-after=0” and “the
“alert-info” header contains “info=alert-autoanswer;delay=0” in the outgoing INVITE.
MAKING CALLS USING IP ADDRESSES
Direct IP Call allows two phones to talk to each other in an ad-hoc fashion without a SIP proxy. VoIP calls
can be made between two phones if:

Both phones have public IP addresses; or

Both phones are on the same LAN/VPN using private or public IP addresses; or

Both phones can be connected through a router using public or private IP addresses (with necessary
port forwarding or DMZ).
To make a direct IP call, please follow the steps below:

Press MENU button to bring up main menu;

Select "Direct IP Call" using the navigation arrow keys;

Press MENU to enter the Direct IP Call mode;

Input the 12-digit target IP address (Please see example below);

Press the "More" softkey to make sure the softkey selection "IPv4" or "IPv6" is correctly selected
depending on your network environment;

Press "OK" softkey to dial.
For example:
If the target IP address is 192.168.1.60 and the port is 5062 (i.e., 192.168.1.60:5062), input the following:
192*168*1*60#5062. The * key represents the dot (.), the # key represents colon (:). Wait for about 4
seconds and the phone will initiate the call.
Quick IP Call Mode:
The GXP2120/GXP2110/GXP2100/GXP14xx also supports Quick IP Call mode. This enables the phone to
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make direct IP calls using only the last few digits (last octet) of the target phone's IP address. This is
possible only if both phones are under the same LAN/VPN. This simulates a PBX function using the
CSMA/CD without a SIP server. Controlled static IP usage is recommended.
To enable Quick IP Call Mode, go to phone's Web GUI->Settings->Call Features, set "Use Quick IP Call
Mode" to "Yes". Click on "Save and Apply" on the bottom of Web GUI page to take the change. To make
Quick IP Call, take the phone off hook first. Then dial #xxx where x is 0-9 and xxx<255. Press # or SEND
and a direct IP call to aaa.bbb.ccc.XXX will be completed. "aaa.bbb.ccc" is from the local IP address
regardless of subnet mask. The number #xx or #x are also valid. The leading 0 is not required (but it's OK).
For example:

192.168.0.2 calling 192.168.0.3 -- dial #3 followed by # or "SEND";

192.168.0.2 calling 192.168.0.23 -- dial #23 followed by # "SEND";

192.168.0.2 calling 192.168.0.123 -- dial #123 followed by # "SEND";

192.168.0.2: dial #3 and #03 and #003 results in the same call -- call 192.168.0.3.
Note:

The # will represent colon ":" in direct IP call rather than SEND key as in normal phone call;

If you have a SIP server configured, direct IP call still works. If you are using STUN, direct IP call will
also use STUN;

Configure the "User Random Port" to "No" when completing direct IP calls.
ANSWERING PHONE CALLS
RECEIVING CALLS

Single incoming call. Phone rings with selected ring tone. The corresponding LINE key will flash in
red. Answer call by taking handset off hook, or using Speaker/Headset, or pressing the flashing LINE
key;

Multiple incoming calls. When another call comes in while having an active call, the phone will
produce a Call Waiting tone (stutter tone). The other LINE key will flash in red. Answer the incoming
call by pressing the flashing LINE key. The current active call will be put on hold automatically.
DO NOT DISTURB
Do Not Disturb can be enabled/disabled from phone's LCD. For GXP2120/GXP2110, press the DND
button on the phone when the phone is in idle. For GXP14xx, press the MUTE button for DND function
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while the phone is in idle.
Or users could set it from phone's Menu following the steps below:

Press the Menu button and select "Preference" using navigation keys;

Press Menu button again to get into Preference options;

Select "Do Not Disturb" and press Menu button;

Use arrow keys to select and press Menu button to enable or disable "Do Not Disturb" feature.
When Do Not Disturb feature is turned on, the DND icon will appear on the right side of the LCD. The
incoming call will not be accepted or the call will directly go into voicemail.
DURING A PHONE CALL
CALL WAITING/CALL HOLD

Hold. Place a call on hold by pressing the HOLD button. The active LINE key will blink in green;

Resume. Resume call by pressing the blinking LINE key;

Multiple calls. Automatically place active call on hold or switch between calls by pressing the LINE
key. Call waiting tone (stutter tone) will be audible on new incoming call during the active call.
MUTE
During an active call, press the MUTE button to mute/unmute the microphone. The LCD will show "Talking"
or "MUTE" to indicate the mute status, with Mute icon displayed on the screen.
CALL TRANSFER
GXP2120/GXP2110/GXP2100/GXP14xx supports Blind Transfer, Attended Transfer and Auto-Attended
Transfer.

Blind Transfer.

During the first active call, press TRAN key and dial the number to transfer to;

Press SEND key or # to complete transfer of active call.
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

Attended Transfer.

During the first active call, press LINE key. The first call will be put on hold;

Enter the number for the second call in the new line and establish the call;

Press TRAN key;

Press the other LINE key which is on hold to transfer the call.
Auto-Attended Transfer.

Set "Auto-Attended Transfer" to "Yes" under Web GUI->Settings->Call Features. And then click
"Save and Apply" on the bottom of the page;

Establish one call first;

During the call, press TRAN key. A new line will be brought up and the first call will be
automatically placed on hold;

Dial the number and press SEND or # to make a second call. (Once the number is entered, a
"Transfer" softkey will show. If "Transfer" softkey is pressed instead of SEND or #, a blind transfer
will be performed);

Press TRAN key again. The call will be transferred.

For Auto-Attended Transfer, after dialing out the number for the second call, a "Split" softkey will
show. If the second call is not established yet (ringing), pressing "Split" will hang up the second call.
If the second call is established (answered), pressing "Split" will resume the second call and keep
the first call on hold.
Note:

To transfer calls across SIP domains, SIP service providers must support transfer across SIP domains.
5-WAY CONFERENCING/3-WAY CONFERENCING
GXP2120/GXP2110/GXP2100 can host up to 5-way conference call with other parties (PCMU/PCMA);
GXP14xx can host 3-way conference call with other 2 parties (PCMU/PCMA).

Initiate a conference call.

Establish calls with 2 or more parties respectively;
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

While 1 call is active, the other call will be put on hold with its LINE key blinking in green;

Press CONF key;

Press the desired LINE key on hold, the conference will be established;

Repeat the previous 2 steps for all the other parties on hold to join the conference.
Cancel Conference.

If after pressing the CONF key, the user decides not to conference, press Cancel softkey or the
current active LINE key (LED in solid green);


This will resume the 2-way conversation with the current line.
Split and Re-conference.

During the conference, press HOLD key. The conference call will be split and the calls will be put
on hold separately with the LINE keys blinking in green;

Select 1 LINE key and press to resume the 2-way conversation;

If users would like to re-establish conference call, before 1 separate LINE is selected, press the
ReConf softkey right after the conference call is held/split;

End Conference.

Press HOLD key to split the conference call. The conference call will be ended with both calls on
hold; Or

Users could press the EndCall softkey or simply hang up the call to terminate the conference call.
GXP2120/GXP2110/GXP2100/GXP14xx supports Easy Conference Mode, which can be used combined
with the traditional way to establish the conference.


Initiate a conference call.

Establish 1 call;

Press CONF key and a new line will be brought up using the same account;

Dial the number and press SEND key to establish the second call;

Press CONF key or press the ConfCall softkey to establish the conference.
Join more parties in established conference call.

Establish conference call;

Press CONF key and a new line will be brought up using the same account;

Dial the number and press SEND key to establish the second call;
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

Press CONF key or press the ConfCall softkey to join the new party in the established conference.
Split and Re-conference.

During the conference, press HOLD key. The conference call will be split and both calls will be put
on hold separately with 2 LINE keys blinking in green;

Select 1 LINE key and press to resume the 2-way conversation;

If users would like to re-establish conference call, before 1 separate LINE is selected, press the
ReConf softkey right after the conference call is split.

Cancel Conference.

If users decides not to conference after establishing the second call, press EndCall softkey instead
of the ConfCall softkey/CONF key;


This will end the second call and the screen will show the first call on hold.
End Conference.

Press HOLD key to split the conference call. The conference call will be ended with both calls on
hold; Or

Users could press the EndCall softkey or simply hang up the call to terminate the conference call.
Note:

The party that starts the conference call has to remain in the conference for its entire duration, you can
put the party on mute but it must remain in the conversation. Also, this is not applicable when the
feature "Transfer on Conference Hangup" is turned on.

The option "Disable Conference" has to be set to "No" to establish conference.

When using Easy Conference Mode, use SEND key to dial out the second call instead of using #,
even when # could be used as SEND in normal phone calls.
VOICE MESSAGES (MESSAGE WAITING INDICATOR)
A blinking red MWI (Message Waiting Indicator) on the top right corner of the phone indicates a message
is waiting. Dial into the voicemail box to retrieve the message by entering the voice mail number of the
server or pressing the Voicemail button (Voice Mail User ID has to be properly configured as the voice mail
number under Web GUI->Account x->General Settings). An IVR will prompt the user through the process
of message retrieval.
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SHARED CALL APPEARANCE (SCA)
The GXP2120/GXP2110/GXP2100/GXP14xx phone supports shared call appearance by Broadsoft
standard. This feature allows members of the SCA group to shared SIP lines and provides status
monitoring (idle, active, progressing, hold) of the shared line. When there is an incoming call designated
for the SCA group, all of the members of the group will be notified of an incoming call and will be able to
answer the call from the phone with the SCA extension registered.
All the users that belong to the same SCA group will be notified by visual indicator when a user seizes the
line and places an outgoing call, and all the users of this group will not be able to seize the line until the line
goes back to an idle state or when the call is placed on hold (with the exception of when multiple call
appearances are enabled on the server side).
In the middle of the conversation, there are two types of hold: Public Hold and Private Hold. When a
member of the group places the call on public hold, the other users of the SCA group will be notified of this
by the red-flashing button and they will be able to resume the call from their phone by pressing the line
button. However, if this call is placed on private-hold, no other member of the SCA group will be able to
resume that call.
To enable shared call appearance, the user would need to register the shared line account on the phone.
In addition, they would need to navigate to "Settings"->"Programmable Keys" on the web UI and set the
line key mode as "Shared Line". If the user requires more shared call appearances, the user can configure
multiple line buttons to be "shared line" buttons associated with the account.
INSERTING PAUSE INTO SPEED DIALS AND PHONEBOOK ENTRIES
GXP2120/GXP2110/GXP2100/GXP14xx supports to insert pause into speed dials and phonebook entries.
There are two types of pause: soft pause and hard pause.
Soft pause:
Insert “,” into a speed dial number or phonebook number. Please see Figure 6 and Figure 7 for the
configurations of inserting soft pause for speed dial and phonebook entry, correspondingly.
For example, the destination number is “2001,1”. When dial out, “2001”, the number before comma, will be
sent as the caller number first. After the call established, phone will wait 1 second and dial “1”, the number
after comma, as DTMF automatically.
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Figure 3: Soft pause for speed dial
Figure 4: Soft pause for phonebook entry
Hard pause:
Insert “;” into a phone number to represent hard pause. The configuration of inserting hard pause is similar
to that of soft pause.
For example, number “2003;1” is configured in speed dial or phonebook entry. When the item is dialed,
“2003” will be sent as the caller number first. After the call is established, user needs to press DTMF
softkey manually to send “1” as DTMF.
CALL FEATURES
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The GXP2120/GXP2110/GXP2100/GXP14xx supports traditional and advanced telephony features
including caller ID, caller ID with caller Name, call forward and etc.
Table 10: CALL FEATURES
Block Caller ID (for all subsequent calls)
*30

Off hook the phone;

Dial *30.
Send Caller ID (for all subsequent calls)
*31

Off hook the phone;

Dial *31.
Block Caller ID (per call)
*67

Off hook the phone;

Dial *67 and then enter the number to dial out.
Send Caller ID (per call)
*82

Off hook the phone;

Dial *82 and then enter the number to dial out.
Disable Call Waiting (per Call)
*70

Off hook the phone;

Dial *70 and then enter the number to dial out.
Enable Call Waiting (per Call)
*71

Off hook the phone;

Dial *71 and then enter the number to dial out.
Unconditional Call Forward. To set up unconditional call forward:
*72

Off hook the phone;

Dial *72 and then enter the number to forward the call;

Press OK softkey or SEND key.
Cancel Unconditional Call Forward. To cancel the unconditional call forward:
*73
*90

Off hook the phone;

Dial *73;

Hang up the call.
Busy Call Forward. To set up busy call forward:
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
Off hook the phone;

Dial *90 and then enter the number to forward the call;

Press OK softkey or SEND key.
Cancel Busy Call Forward. To cancel the busy call forward:
*91

Off hook the phone;

Dial *91;

Hang up the call.
Delayed Call Forward. To set up delayed call forward:
*92

Off hook the phone;

Dial *92 and then enter the number to forward the call;

Press OK softkey or SEND key.
Cancel Delayed Call Forward. To cancel the delayed call forward:
*93

Off hook the phone;

Dial *93;

Hang up the call.
CUSTOMIZED LCD SCREEN & XML
The GXP2120/GXP2110/GXP2100/GXP14xx IP phone supports the following XML applications. Please
refer to the corresponding link for documentation and templates.

XML custom idle screen (customize idle screen logo, softkey layout, and etc.)
http://www.grandstream.com/products/gxp_series/general/documents/GXP2120/GXP2110/GXP2100_
14xx_XML_Screen_Customization.zip

XML downloadable phonebook
http://www.grandstream.com/products/gxp_series/general/documents/gxp_wp_xml_phonebook.pdf

XML Application (For GXP2120/GXP2110/GXP2100 only)
http://www.grandstream.com/products/gxp_series/general/documents/xml_application_guide.zip
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CONFIGURATION GUIDE
The GXP2120/GXP2110/GXP2100/GXP14xx can be configured via two ways:

LCD Configuration Menu using the phone's keypad;

Web GUI embedded on the phone using PC's web browser.
CONFIGURATION VIA KEYPAD
To configure the LCD menu using phone's keypad, follow the instructions below:

Enter MENU options. When the phone is in idle, press the round MENU button to enter the
configuration menu;

Navigate in the menu options. Press the arrow keys up/down/left/right to navigate in the menu
options;

Enter/Confirm selection. Press the round MENU button to enter the selected option;

Exit. Press LEFT arrow key to exit to the previous menu;

The phone automatically exits MENU mode with an incoming call, when the phone is off hook or the
MENU mode if left idle for more than 60 seconds.

When the phone is in idle, pressing the navigation keys UP/DOWN/RIGHT can access the call history
entries:
UP - Missed Calls
DOWN - Dialed Calls
RIGHT - Answered Calls
The MENU options are listed in the following table.
Table 11: CONFIGURATION MENU
Call History
Displays call logs for answered calls, dialed calls, missed calls,
transferred calls
and forwarded calls.
Status
Displays network status, account registration status, software version number,
MAC address, hardware version number, P/N number.

Network status.
Press to enter the sub menu for IP setting information (DHCP/Static
IP/PPPoE), IPv4 address, IPv6 address, MAC address, Subnet Mask,
Gateway and DNS server.
Phone Book
Displays phonebook. Users could add, edit, search and delete contacts/groups
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here, or download phonebook XML to the phone. When doing phonebook search,
user can only search ASCII characters.
Note: Besides 3 embedded groups: Family, Friends and Work, user can create
your own new groups. GXP phone allows at most 7 customized groups.
LDAP Directory
Searches LDAP directory and configures LDAP options. LDAP search does not
support entering Non-ASCII characters
Instant Messages
Displays received instant messages.
Direct IP Call
Makes direct IP call.
Preference
Preference sub menu includes the following options:

Do Not Disturb
Enables/disables Do Not Disturb on the phone.

Ring Tone
Configures different ring tones for incoming call.

Ring Volume
Adjusts ring volume by pressing left/right arrow key.

LCD Contrast
Adjusts LCD contrast by pressing left/right arrow key.

LCD Brightness (Not applicable to GXP140x)
Adjusts LCD brightness by pressing left/right arrow key.

Download SCR XML
Triggers the phone to download the XML idle screen file immediately. The XML
idle screen server path and downloading method need to be set up correctly
from Web GUI first.

Erase Custom SCR
Erases custom XML idle screen previously loaded on the phone. After erasing
it, the phone will show default idle screen.

Display Language
Selects the language to be displayed on the phone's LCD. Users could select
Automatic for local language based on IP location if available.

Date and Time Settings
Configures date, time and NTP server on the phone.

Star Key Lock
Turns on/off keypad lock feature and configures keypad lock password.
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Config
Config sub menu includes the following options:

SIP
Configures SIP Proxy, Outbound Proxy, SIP User ID, SIP Auth ID, SIP
Password, SIP Transport and Audio information to register SIP account on the
phone.

Upgrade
Configures firmware server and config server for upgrading and provisioning
the phone.

Factory Reset
Resets the phone to factory default settings.

Layer 2 QoS
Configures 802.1Q/VLAN Tag and priority value.
Factory Functions
Factory Functions sub menu includes the following options:

Audio Loopback
Speak to the phone using speaker/handset/headset. If you can hear your
voice, your audio is working fine. Press Menu button to exit audio loopback
mode.

Diagnostic Mode
All LEDs will light up. Press any key (except MENU key) on the keypad to
display the button name in the LCD. Lift and put back the handset or press
Menu button to exit diagnostic mode.

Keyboard Diagnostic
Press all the available keys on the phone. The LCD will display the name for
the keys to be pressed to finish the keyboard diagnostic mode.
Network
Selects IP mode (DHCP/Static IP/PPPoE); Configures PPPoE account ID and
password; Configures IP address, Netmask, Gateway, DNS Server 1 and DNS
Server 2; Configures 802.1X mode.
Call Features
Configures call forward features for Forward All, Forward Busy, Forward No
Answer and No Answer Timeout.
Voice Mails
Displays voicemail message information in the format below:
new messages/all messages (urgent messages/all urgent messages)
UCM Connection

UCM Server List
Displays connected UCM server List.

Input Server IP Manually
Specifies Protocol, IP and Port of the target UCM server
Reboot
Reboot the phone.
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Exit
Exit from this menu.
The following picture shows the keypad MENU configuration flow.
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MENU
Call History
Status
Answered Calls
Dialed Calls
Missed Calls
Transferred Calls
Clear All
Back
First Name
Last Name
Number
Acct
Groups
Confirm Add
Cancel & Return
Groups
New Entry
Search
Download Phonebook XML
Delete All Entries
Back
Server Address
Port
Base
User Name
Password
LDAP Number Filter
LDAP Name Filter
LDAP Version
...
Phone Book
LDAP
Search
LDAP Configuration
Back
Directory
Instant
Messages
Direct IP Call
Preference
Config
Factory
Functions
Network
Call Features
Voice Mails
Reboot
Exit
Do Not Disturb
Ring Tone
Ring Volume
LCD Contrast
*LCD Brightness
Download SCR XML
Erase Custom SCR
Display Language
Time Settings
Star Key Lock
Back
SIP
Upgrade
Factory Reset
Layer 2 QoS
Back
Audio Loopback
Diagnostic Mode
Keyboard Diagnostic
Back
IP Setting
PPPoE Settings
IP
Netmask
Gateway
DNS Server 1
DNS Server 2
802.1X
Back
Account X
Enable DND
Disable DND
Back
Default Ring
Ring1
Ring2
Ring 3
Back
Account
SIP Proxy
Outbound Proxy
SIP User ID
SIP Auth ID
SIP Password
SIP Transport
Audio
Save
Cancel
Firmware Server
Config Server
Upgrade Via
Back
802.1Q/VLAN Tag
Priority value
Reset Vlan Config
Back
Forward All
Forward Busy
Forward No Answer
No Answer Timeout
Figure 5: Keypad MENU Flow
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Note:
*LCD Brightness is
not applicable to GXP140x.
CONFIGURATION VIA WEB BROWSER
The GXP2120/GXP2110/GXP2100/GXP14xx embedded Web server responds to HTTP/HTTPS
GET/POST requests. Embedded HTML pages allow a user to configure the IP phone through a Web
browser such as Microsoft’s IE, Mozilla Firefox and Google Chrome.
To access the Web GUI:
1. Connect the computer to the same network as the phone;
2. Make sure the phone is turned on and shows its IP address. You may check the IP address on the
LCD or go to MENU->Status->Network Status;
3. Open a Web browser on your computer;
4. Enter the phone’s IP address in the address bar of the browser;
5. Enter the administrator’s login and password to access the Web Configuration Menu.
Note:

The computer has to be connected to the same sub-network as the phone. This can be easily done by
connecting the computer to the same hub or switch as the phone connected to. In absence of a
hub/switch (or free ports on the hub/switch), please connect the computer directly to the PC port on the
back of the phone;

If the phone is properly connected to a working Internet connection, the IP address of the phone will
display in MENU->Status->Network Status. This address has the format: xxx.xxx.xxx.xxx, where xxx
stands for a number from 0-255. Users will need this number to access the Web GUI. For example, if
the phone has IP address 192.168.40.154, please enter "http://192.168.40.154" in the address bar of
the browser;

There are two default passwords for the login page:
User Level
Password
Web Pages Allowed
End User Level
123
Only Status and Basic Settings
Administrator Level
admin
Browse all pages
The password is case sensitive with maximum length of 25 characters.

When changing any settings, always SUBMIT them by pressing the "Save" or "Save and Apply" button
on the bottom of the page. If the change is saved only but not applied, after making all the changes,
click on the "APPLY" button on top of the page to submit. After submitting the changes in all the Web
GUI pages, reboot the phone to have the changes take effect if necessary (All the options under
"Accounts" page and "Phonebook" page do not require reboot. Most of the options under "Settings"
page do not require reboot).
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DEFINITIONS
This section describes the options in the phone's Web GUI. As mentioned, you can log in as an
administrator or an end user.

Status: Displays the Account status, Network status, and System Info of the phone;

Account: To configure the SIP account;

Network: To configure network settings;

Settings: To configure call features, ring tone, LCD display, Web services, XML applications,
programmable keys, and etc;

Maintenance: To configure web/Telnet access, upgrading and provisioning, language settings,
TR-069, security and etc.

Phonebook: To manage Phonebook and LDAP.
STATUS PAGE DEFINITIONS
Status -> Account Status
Account x
Account index.
SIP User ID
Displays the configured SIP User ID.
SIP Server
Displays the configured SIP Server address.
SIP Registration
Displays SIP registration status YES/NO.
Status -> Network Status
Global unique ID of device, in HEX format. The MAC address will be used for
MAC Address
provisioning and can be found on the label coming with original box and on the
label located on the back of the device.
IP Setting
DHCP, Static IP or PPPoE.
IPv4 Address
The IPv4 address obtained on the phone.
IPv6 Address
The IPv6 address obtained on the phone.
Subnet Mask
The subnet mask obtained on the phone.
Gateway
The gateway address obtained on the phone.
DNS Server 1
The DNS server address 1.
DNS Server 2
The DNS server address 2.
NTP Server
The NTP server phone uses to sync up time.
PPPoE Link Up
PPPoE connection status.
802.1q/802.1p(LLDP)
The 802.1q/802.p status.
802.1q/VLAN Tag
The assigned VLAN tag on phone.
802.1q Priority
The assigned 802.1q priority on phone.
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NTP Server
The NTP server phone uses to sync up time.
Status -> System Info
Product Model
Product model of the phone.
Part Number
Product part number.
Software Version

Boot: boot version number;

Core: core version number;

Base: base version number;

Prog: program version number. This is the main firmware release number,
which is always used for identifying the software system of the phone;

Aux: Aux version number;

Dsp: DSP version number.
System Up Time
System up time since the last reboot.
System Time
Current system time on the phone system.
Service Status
GUI and Phone service status.
Core Dump
Core dump file that could be downloaded for troubleshooting purpose.
ACCOUNTS PAGE DEFINITIONS
Account x -> General Settings
Account Active
Activates/deactivates account. The default setting is "Yes".
Account Name
The name associated with the SIP account.
SIP Server
Secondary SIP Server
The URL or IP address, and port of the SIP server. This is provided by your
VoIP service provider (ITSP).
The URL or IP address, and port of the SIP server. This will be used when the
primary SIP server fails.
IP address or Domain name of the Primary Outbound Proxy, Media Gateway,
Outbound Proxy
or Session Border Controller. It's used by the phone for Firewall or NAT
penetration in different network environments. If a symmetric NAT is detected,
STUN will not work and ONLY an Outbound Proxy can provide a solution.
User account information, provided by your VoIP service provider (ITSP). It's
SIP User ID
usually in the form of digits similar to phone number or actually a phone
number.
Authenticate ID
SIP service subscriber's Authenticate ID used for authentication. It can be
identical to or different from the SIP User ID.
The account password required for the phone to authenticate with the ITSP
Authenticate Password
(SIP) server before the account can be registered. After it is saved, this will
appear as hidden for security purpose.
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Name
The SIP server subscriber's name (optional) that will be used for Caller ID
display.
Allows you to access voice messages by pressing the MESSAGE button on
Voice Mail User ID
the phone. This ID is usually the VM portal access number. For example, in
Asterisk server, 8500 could be used.
Account x -> Network Settings
This parameter controls how the Search Appliance looks up IP addresses for
hostnames. There are four modes: A Record, SRV, NATPTR/SRV, Use
Configured IP. The default setting is "A Record". If the user wishes to locate
the server by DNS SRV, the user may select "SRV" or "NATPTR/SRV". If "Use
Configured IP" is selected, please fill in the three fields below:

Primary IP: The primary IP address where the phone sends DNS query
to;
DNS Mode

Backup IP 1;

Backup IP 2.
If SIP server is configured as domain name, phone will not send DNS query,
but use “Primary IP” or “Backup IP x” to send SIP message if at least one of
them are not empty. Phone will try to use “Primary IP” first. After 3 tries without
any response, it will switch to “Backup IP x”, and then it will switch back to
“Primary IP” after 3 re-tries.
If SIP server is already an IP address, phone will use it directly even “User
Configured IP” is selected.
This parameter configures whether the NAT traversal mechanism is activated.
Users could select the mechanism from No, STUN, Keep-Alive, UPnP, Auto or
VPN. If set to "STUN" and STUN server is configured, the phone will route
according to the STUN server. If NAT type is Full Cone, Restricted Cone or
NAT Traversal
Port-Restricted Cone, the phone will try to use public IP addresses and port
number in all the SIP&SDP messages. The phone will send empty SDP packet
to the SIP server periodically to keep the NAT port open if it is configured to be
"Keep-Alive". Configure this to be "No" if an outbound proxy is used. "STUN"
cannot be used if the detected NAT is symmetric NAT.
A SIP Extension to notify the SIP server that the phone is behind a
Proxy-Require
NAT/Firewall. Do not configure this parameter unless this feature is supported
on the SIP server.
Account x -> SIP Settings -> Basic Settings
If the phone has an assigned PSTN telephone number, this field should be set
TEL URI
to "User=Phone". Then a "User=Phone" parameter will be attached to the
Request-Line and "TO" header in the SIP request to indicate the E.164
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number. If set to "Enable", "Tel:" will be used instead of "SIP:" in the SIP
request. The default setting is "Disable".
SIP Registration
Selects whether or not the phone will send SIP Register messages to the
proxy/server. The default setting is "Yes".
If set to "Yes", the SIP user's registration information will be cleared when the
Unregister On Reboot
phone reboots. The SIP Contact header will contain "*" to notify the server to
unbind the connection. The default setting is "No".
Specifies the frequency (in minutes) in which the phone refreshes its
Register Expiration
registration with the specified registrar. The default value is 60 minutes. The
maximum value is 64800 minutes (about 45 days).
Reregister Before
Specifies
the
time
frequency
(in
seconds)
that
the
phone
sends
Expiration
re-registration request before the Register Expiration. The default value is 0.
Defines the local SIP port used to listen and transmit. The default value is
Local SIP Port
5060 for Account 1, 5062 for Account 2, 5064 for Account 3, 5066 for Account
4, 5068 for Account 5, 5070 for Account 6.
SIP Registration Failure
Specifies the interval to retry registration if the process is failed. The default
Retry Wait Time
value is 20 seconds.
SIP T1 Timeout
SIP T1 Timeout. The default setting is 0.5 seconds.
SIP T2 interval
SIP T2 Interval. The default setting is 4 seconds.
SIP Transport
Determines the network protocol used for the SIP transport. Users can choose
from TCP, UDP and TLS.
SIP URI Scheme when
Specifies if "sip:" or "sips:" will be used when TLS/TCP is selected for SIP
using TLS
Transport. The default setting is "sips:".
Use Actual Ephemeral
Port in Contact with
TCP/TLS
Remove OBP from route
Support SIP Instance ID
This option is used to control the port information in the Via header and
Contact header. If set to No, these port numbers will use the permanent
listening port on the phone. Otherwise, they will use the ephemeral port for the
particular connection.
Configures to remove outbound proxy from route. This is used for the SIP
Extension to notify the SIP server that the device is behind a NAT/Firewall.
Defines whether SIP Instance ID is supported or not. The default setting is
"Yes".
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be sent
SUBSCRIBE for MWI
periodically. The phone supports synchronized and non-synchronized MWI.
The default setting is "No".
SUBSCRIBE for
When set to "Yes", a SUBSCRIBE for Registration will be sent out periodically.
Registration
The default setting is "No".
Enable 100rel
The use of the PRACK (Provisional Acknowledgment) method enables
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reliability to SIP provisional responses (1xx series). This is very important in
order to support PSTN internetworking. To invoke a reliable provisional
response, the 100rel tag is appended to the value of the required header of the
initial signaling messages.
When set to "Auto", the phone will look for the caller ID in the order of
P-Asserted Identity Header, Remote-Party-ID Header and From Header in the
Caller ID Display
incoming SIP INVITE. When set to "Disabled", all incoming calls are displayed
with "Unavailable". When set to "From Header", the phone will display the
caller ID based on the From Header in the incoming SIP INVITE. The default
setting is "Auto".
Controls whether the Privacy Header will present in the SIP INVITE message
or not. The default setting is "default": the Privacy Header will show in INVITE
Use Privacy Header
unless "Huawei IMS" special feature is on. If set to "Yes", the Privacy Header
will always show in INVITE. If set to "No", the Privacy Header will not show in
INVITE.
Controls whether the P-Preferred-Identity Header will present in the SIP
INVITE
message
or
not.
The
default
setting
is
"default":
the
Use P-Preferred-Identity
P-Preferred-Identity Header will show in INVITE unless "Huawei IMS" special
Header
feature is on.
If set to "Yes", the P-Preferred-Identity Header will always show in INVITE.
If set to "No", the P-Preferred-Identity Header will not show in INVITE.
Account x -> SIP Settings -> Advanced Features
Default setting is "No". When set to "Yes", a soft key “BSCCenter” is displayed
Broadsoft Call Center
on LCD. User can access different Broadsoft Call Center agent features via
this soft key. Please note that “Feature Key Synchronization” will be enabled
regardless of this setting.
Broadsoft Hoteling event feature. Default setting is "No". With “Hoteling Event”
Hoteling Event
enabled, user can access the Hoteling feature option by pressing the
“BSCCenter” soft key.
Call Center Status
Publish to Call Center
When set to "Yes", the phone will send SUBSCRIBE to the server to obtain call
center status. The default setting is "No".
When set to "Yes", users could select "Away", "Online" or "Busy" from LCD
menu and publish it to call center. The default setting is "No".
This feature is used for Broadsoft call feature synchronization. When it's
Feature Key
enabled, DND, Call Forward features and Call Center Agent status can be
Synchronization
synchronized between Broadsoft server and phone. The default setting is
"Disabled".
Line Seize Timeout
For Shared Call Appearance, phone must send a SUBSCRIBE-request for the
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line-seize event package whenever a user attempts to take the shared line off
hook. “Line Seize Timeout” is the line-seize event expiration timer. The default
value is 15 seconds.
Configures the eventlist BLF URI on the phone to monitor the extensions in the
list with Multi Purpose Key. If the server supports this feature, users need to
configure
Eventlist BLF URI
an
eventlist
BLF
URI
on
the
service
side
first
(i.e.,
BLF1006@myserver.com) with a list of extension included. On the phone, in
this "eventlist BLF URI" field, fill in the URI without the domain (i.e., BLF1006).
To
monitor
the
extensions
in
the
list,
under
Web
GUI->Settings->Programmable Keys page, please select "eventlist BLF" in the
key mode, choose account, enter the value of each extension in the list.
Conference URI
Music On Hold URI
BLF Call-pickup Prefix
PUBLISH for Presence
Configures the conference URI when using Broadsoft N-way calling feature.
Configures Music On Hold URI to call when a call is on hold. This feature has
to be supported on the server side.
Configures the prefix prepended to the BLF extension when the phone picks
up a call with BLF key. The default setting is **.
Enables presence feature on the phone. The default setting is "No".
Different soft switch vendors have special requirements. Therefore users may
need select special features to meet these requirements. Users can choose
Special Feature
from Standard, Nortel MCS, Broadsoft, CBCOM, RNK, Sylantro, Huawei IMS
or Phonepower depending on the server type. The default setting is
"Standard". Phonepower is for GXP14xx only.
Account x -> SIP Settings -> Session Timer
The SIP Session Timer extension that enables SIP sessions to be periodically
"refreshed" via a SIP request (UPDATE, or re-INVITE). If there is no refresh
Session Expiration
via an UPDATE or re-INVITE message, the session will be terminated once
the session interval expires. Session Expiration is the time (in seconds) where
the session is considered timed out, provided no successful session refresh
transaction occurs beforehand. The default value is 180 seconds.
Min-SE
Caller Request Timer
Callee Request Timer
Force Timer
The minimum session expiration (in seconds). The default value is 90
seconds.
If set to "Yes" and the remote party supports session timers, the phone will use
a session timer when it makes outbound calls.
If set to "Yes" and the remote party supports session timers, the phone will use
a session timer when it receives inbound calls.
If Force Timer is set to "Yes", the phone will use the session timer even if the
remote party does not support this feature. If Force Timer is set to "No", the
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phone will enable the session timer only when the remote party supports this
feature. To turn off the session timer, select "No".
UAC Specify Refresher
UAS Specify Refresher
Force INVITE
As a Caller, select UAC to use the phone as the refresher; or select UAS to
use the Callee or proxy server as the refresher.
As a Callee, select UAC to use caller or proxy server as the refresher; or select
UAS to use the phone as the refresher.
The Session Timer can be refreshed using the INVITE method or the UPDATE
method. Select "Yes" to use the INVITE method to refresh the session timer.
Account x -> SIP Settings -> Security Settings
Check Domain
Choose whether the domain certificates will be checked or not when TLS/TCP
Certificates
is used for SIP Transport. The default setting is "No".
Validate Incoming
Choose whether the incoming messages will be validated or not. The default
Messages
setting is "No".
Check SIP User ID for
incoming INVITE
Accept Incoming SIP
from Proxy Only
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming
INVITE. If it doesn't match the phone's SIP User ID, the call will be rejected.
The default setting is "No".
When set to "Yes", the SIP address of the Request URL in the incoming SIP
message will be checked. If it doesn't match the SIP server address of the
account, the call will be rejected. The default setting is "No".
Authenticate Incoming
If set to "Yes", the phone will challenge the incoming INVITE for authentication
INVITE
with SIP 401 Unauthorized response. The default setting is "No".
Account x -> Audio Settings
Specifies the mechanism to transmit DTMF digits. There are 3 supported
Send DTMF
modes: in audio which means DTMF is combined in the audio signal (not very
reliable with low-bit-rate codecs), via RTP (RFC2833), or via SIP INFO.
DTMF Payload Type
Configures the payload type for DTMF using RFC2833. The default value is
101.
7 different vocoder types are supported on the phone, including G.711 U-law
Preferred Vocoder
(PCMU), G.711 A-law (PCMA), G.723.1, G.729A/B, G.722 (wide band), iLBC
and G72-32. Users can configure vocoders in a preference list that is included
with the same preference order in SDP message.
Use First Matching
When set to "Yes", the device will use the first matching vocoder in the
Vocoder in 200OK SDP
received 200OK SDP as the codec. The default setting is "No".
SRTP Mode
Crypto Life Time
Enables the SRTP mode based on your selection. The default setting is
"Disabled".
Choose whether to include the lifetime parameter in SRTP crypto offer.
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Symmetric RTP
Defines whether symmetric RTP is supported or not. The default setting is
"No".
Controls the silence suppression/VAD feature of the audio codec G.723 and
Silence Suppression
G.729. If set to "Yes", when silence is detected, a small quantity of VAD
packets (instead of audio packets) will be sent during the period of no talking.
If set to "No", this feature is disabled. The default setting is "No".
Configures the number of voice frames transmitted per packet. When
configuring this, it should be noted that the "ptime" value for the SDP will
Voice Frames Per TX
change with different configurations here. This value is related to the codec
used and the actual frames transmitted during the in payload call. For end
users, it is recommended to use the default setting, as incorrect settings may
influence the audio quality.
G723 Rate
Selects encoding rate for G723 codec. The default value is 5.3kbps.
G.726-32 Packing Mode
Selects "ITU" or "IETF" for G726-32 packing mode.
iLBC Frame Size
Selects iLBC packet frame size. The default value is 30ms.
iLBC Payload Type
Jitter Buffer Type
Jitter Buffer Length
Specifies iLBC Payload type. The default value is 97. The valid range is
between 96 and 127.
Selects either Fixed or Adaptive based on network conditions. The default
setting is "Adaptive".
Selects Low, Medium, or High based on network conditions. The default
setting is "Medium".
Account x -> Call Settings
Early Dial
Dial Plan Prefix
Selects whether or not to enable early dial. If it's set to "Yes", the SIP proxy
must support 484 response. The default setting is "No".
Sets the prefix added to each dialed number.
A dial plan establishes the expected number and pattern of digits for a
telephone number. This parameter configures the allowed dial plan for the
phone.
Dial Plan Rules:
Dial Plan
1. Accepted Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d;
2. Grammar: x - any digit from 0-9;
a) xx+ or xx. - at least 2 digit numbers
b) xx - only 2 digit numbers
c) ^ - exclude
d) [3-5] - any digit of 3, 4, or 5
e) [147] - any digit of 1, 4, or 7
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f)
<2=011> - replace digit 2 with 011 when dialing
g) | - the OR operand

Example 1: {[369]11 | 1617xxxxxxx}
Allow 311, 611, and 911 or any 10 digit numbers with leading digits 1617;

Example 2: {^1900x+ | <=1617>xxxxxxx}
Block any number of leading digits 1900 or add prefix 1617 for any dialed 7
digit numbers;

Example 3: {1xxx[2-9]xxxxxx | <2=011>x+}
Allows any number with leading digit 1 followed by a 3 digit number, followed
by any number between 2 and 9, followed by any 7 digit number OR Allows
any length of numbers with leading digit 2, replacing the 2 with 011 when
dialed.
Example of a simple dial plan used in a Home/Office in the US:
{ ^1900x. | <=1617>[2-9]xxxxxx | 1[2-9]xx[2-9]xxxxxx | 011[2-9]x. | [3469]11 }
Explanation of example rule (reading from left to right):

^1900x. - prevents dialing any number started with 1900;

<=1617>[2-9]xxxxxx - allows dialing to local area code (617) numbers by
dialing 7 numbers and 1617 area code will be added automatically;

1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11
digits length;

011[2-9]x - allows international calls starting with 011;

[3469]11 - allows dialing special and emergency numbers 311, 411, 611
and 911.
Note:
In some cases where the user wishes to dial strings such as *123 to activate
voice mail or other applications provided by their service provider, the * should
be predefined inside the dial plan feature. An example dial plan will be: { *x+ }
which allows the user to dial * followed by any length of numbers.
Delayed Call Forward
Defines the timeout (in seconds) before the call is forwarded on no answer.
Wait Time
The default value is 20 seconds.
The default setting is "Yes". When enabled, call features using star codes will
Enable Call Features
be supported locally. If set to "No", Call Features and DND options under LCD
menu are supported. And ForwardAll soft key will not be displayed in LCD for
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Account 1.
Configures Call Log setting on the phone. You can log all calls, only log
Call Log
incoming/outgoing calls or disable call log. The default setting is "Log All
Calls".
Account Ring Tone
Allows users to configure the ringtone for the account. Users can choose from
different ringtones from the dropdown menu.
Specifies matching rules with number, pattern or Alert Info text. When the
incoming caller ID or Alert Info matches the rule, the phone will ring with
selected distinctive ringtone. Matching rules:

Specific caller ID number. For example, 8321123;

A defined pattern with certain length using x and + to specify, where x
could be any digit from 0 to 9. Samples:
xx+ : at least 2-digit number;
xx : only 2-digit number;
[345]xx: 3-digit number with the leading digit of 3, 4 or 5;
Match Incoming Caller ID
[6-9]xx: 3-digit number with the leading digit from 6 to 9.

Alert Info text
Users could configure the matching rule as certain text (e.g., priority) and
select the custom ring tone mapped to it. The custom ring tone will be
used if the phone receives SIP INVITE with Alert-Info header in the
following format:
Alert-Info: <http://127.0.0.1>; info=priority
Selects the distinctive ring tone for the matching rule. When the incoming
caller ID or Alert Info matches the rule, the phone will ring with the selected
ring.
Ring Timeout
Send Anonymous
Anonymous Call
Rejection
Auto Answer
Allow Auto Answer by
Call-Info
Refer-To Use Target
Defines the timeout (in seconds) for the rings on no answer. The default setting
is 60 seconds.
If set to "Yes", the "From" header in outgoing INVITE messages will be set to
anonymous, essentially blocking the Caller ID to be displayed.
If set to "Yes", anonymous calls will be rejected. The default setting is "No".
If set to "Yes", the phone will automatically turn on the speaker phone to
answer incoming calls after a short reminding beep.
If set to "Yes", the phone will automatically turn on the speaker phone to
answer incoming calls after a short reminding beep, based on the SIP info
header sent from the server/proxy. The default setting is "No".
If set to "Yes", the "Refer-To" header uses the transferred target's Contact
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Contact
header information for attended transfer. The default setting is "No".
Transfer on Conference
Defines whether or not the call is transferred to the other party if the initiator of
Hangup
the conference hangs up. The default setting is "No".
No Key Entry Timeout (s)
Defines the timeout (in seconds) for no key entry. If no key is pressed after the
timeout, the digits will be sent out. The default value is 4 seconds.
Allows users to configure the "#" key as the "Send" key. If set to "Yes", the "#"
Use # as Dial Key
key will immediately dial out the input digits. In this case, this key is essentially
equivalent to the "Send" key. If set to "No", the "#" key is included as part of the
dialing string.
Hold Method
Specifies Hold method to Auto or RFC3264. Auto is to satisfy both rfc3264 and
rfc2xxx for the maximum capability.
DND Call Feature On
Configures feature code to turn on DND
DND Call Feature Off
Configures feature code to turn off DND
SETTINGS PAGE DEFINITIONS
Settings -> General Settings
This parameter defines the local RTP port used to listen and transmit. It
is the base RTP port for channel 0. When configured, channel 0 will use
Local RTP Port
this port _value for RTP; channel 1 will use port_value+2 for RTP. Local
RTP port ranges from 1024 to 65400 and must be even. The default
value is 5004.
When set to "Yes", this parameter will force random generation of both
Use Random Port
the local SIP and RTP ports. This is usually necessary when multiple
phones are behind the same full cone NAT. The default setting is "Yes"
(This parameter must be set to "No" for Direct IP Calling to work).
Specifies how often the phone sends a blank UDP packet to the SIP
Keep-alive Interval
server in order to keep the "ping hole" on the NAT router to open. The
default setting is 20 seconds.
Use NAT IP
The NAT IP address used in SIP/SDP messages. This field is blank at
the default settings. It should ONLY be used if it's required by your ITSP.
The IP address or Domain name of the STUN server. STUN resolution
STUN Server
results are displayed in the STATUS page of the Web GUI. Only
non-symmetric NAT routers work with STUN.
Configures to turn on/off public mode for hot desking feature on the
Public Mode
phone. If set to "Yes", users would need fill in the SIP Server address for
account 1 as well. Then reboot the phone. When the phone boots up,
users will need enter SIP User ID and Password on the LCD to login and
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use the phone.
Note:
When the phone is in public mode login screen, press CONF button will
have the IP address of the phone displayed.
Public Mode Login Expiration
Expiration time is 0 to 24 hours. After time expiration, phone will auto log
out.
Settings -> Call Features
Configures a User ID/extension to dial automatically when the phone is
Off-hook Auto Dial
off hook. The phone will use the first account to dial out. The default
setting is "No".
Off-hook Timeout
If configured, when the phone is on hook, it will go off hook after the
timeout (in seconds). The default value is 30 seconds.
Configures the intercom extension number for account 1 to dial out (Not
Intercom User ID
applicable to GXP14xx). This User ID is mapped to the INTERCOM
button on the phone.
Disable Call Waiting
Disable Call Waiting Tone
Disable Direct IP Call
Disables the call waiting feature. The default setting is "No".
Disables the call waiting tone when call waiting is on. The default setting
is "No".
Disables Direct IP Call. The default setting is "No".
When set to "Yes", users can dial an IP address under the same
LAN/VPN segment by entering the last octet in the IP address. To dial
quick IP call, off hook the phone and dial #XXX (X is 0-9 and XXX
Use Quick IP Call mode
<=255), phone will make direct IP call to aaa.bbb.ccc.XXX where
aaa.bbb.ccc comes from the local IP address REGARDLESS of subnet
mask. #XX or #X are also valid so leading 0 is not required (but OK). No
SIP server is required to make quick IP call. The default setting is "No".
Disable Conference
Disable in-call DTMF Display
Disables the Conference function. The default setting is "No".
When it's set to "Yes", the DTMF digits entered during the call will not
display. The default setting is "No".
Enable sending DTMF via
Enables Multi Purpose Key to send DTMF during the call (Not applicable
Speed Dial
to GXP14xx). The default setting is "No".
Disable DND Button
Disable Transfer
Enable Idle Mute
FIRMWARE VERSION 1.0.6.11
If set to "Yes", the DND button will not set the phone to DND. The default
setting is "No".
Disables the Transfer function. The default setting is "No".
If this feature is enabled, MUTE key will take effect in idle state and future
incoming call will be answered with mute.
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In-call dial number on pressing
Configures the number for the phone to dial as DTMF during the call
transfer key
using TRAN button.
Auto-Attended Transfer
If set to "Yes", the phone will use attended transfer by default. The default
setting is "No".
Do Not Escape # as %23 in
Specifies whether to replace # by %23 or not for some special situations.
SIP URI
The default setting is "No".
Click-To-Dial Feature
Enables Click-To-Dial feature. The default setting is "Disabled".
Blink message LED on
ringing(for GXP140x only)
Message LED light will blink if there is an incoming call.
Call History Flash Writing:
Defines the interval (in seconds) to save the call history to phone's flash.
Write Timeout
The default value is 300 seconds.
Call History Flash Writing:
Defines the number of unsaved logs before written to phone's flash. The
Max Unsaved Log
default value is 200 entries.
Settings -> Ring Tone
Configures ring or tone frequencies based on parameters from local
Call Progresses Tones:
telecom. The default value is North American standard. Frequencies
System Ring Tone
should be configured with known values to avoid uncomfortable high
Dial Tone
pitch sounds.
Second Dial Tone
Message Waiting
Syntax: f1=val,f2=val[,c=on1/off1[-on2/off2[-on3/off3]]];
Ring Back Tone
(Frequencies are in Hz and cadence on and off are in 10ms)
Call-Waiting Tone
ON is the period of ringing (“On time” in ‘ms’) while OFF is the period of
Busy Tone
silence. In order to set a continuous ring, OFF should be zero. Otherwise
Reorder Tone
it will ring ON ms and a pause of OFF ms and then repeat the pattern. Up
to three cadences are supported.
Call Waiting Tone Gain
Configures the call waiting tone gain to adjust call waiting tone volume.
The default setting is "Low".
Settings -> Audio Control
When headset is connected to the phone, users could use the HEADSET
button in "Default Mode" or "Toggle Headset/Speaker".

Headset Key Mode
Default Mode:

When the phone is in idle, press HEADSET button to off hook
the phone and make calls by using headset. Headset icon will
display on the screen in dialing/talking status.

When there is an incoming call, press HEADSET button to pick
up the call using headset.

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button to hang up the call.

When Speaker/Handset is being used in dialing/talking status,
press HEADSET button to switch to headset. Press it again to
hang up the call. Or press speaker/Handset to switch back to the
previous mode.

Toggle Headst/Speaker:

When the phone is in idle, press HEADSET button to switch to
Headset mode. The headset icon will display on the left side of
the screen. In this mode, if pressing Speaker button or Line key
to off hook the phone, headset will be used.

When there is an active call, press HEADSET button to toggle
between Headset and Speaker.
Configures to enable or disable the speaker to ring when headset is used
Always Ring Speaker
on "Toggle Headset/Speaker" mode. If set to "Yes", when the phone is in
Headset "Toggle Headset/Speaker" mode, both headset and speaker will
ring on incoming call. The default setting is "No".
Headset TX gain
Headset RX gain
Handset TX gain
Configures the transmission gain of the headset. The default value is
0dB.
Configures the receiving gain of the headset. The default value is 0dB.
Configures the transmission gain of the handset. The default value is 0
dB.
Settings -> LCD Display
Configures the LCD backlight brightness level (from 0 to 8) for phone's
active status. The default value is 6.
Backlight Brightness: Active
Note:
This options is not applicable to GXP140x.
Configures the LCD backlight brightness level (from 0 to 8) for phone's
idle status. The default value is 2.
Backlight Brightness: Idle
Note:
This options is not applicable to GXP140x.
LCD Contrast
Configures the LCD contrast level (from 0 to 20). The default value is 10.
When it's set to "Yes", the LCD backlight will not be turned on when there
Disable Missed Call Backlight
is a new missed call. The default setting is "No".
Note:
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This option is not applicable to GXP140x.
Settings -> Date and Time
NTP Server
Allow DHCP Option 42
Override NTP Server
Time Zone
Defines the URL or IP address of the NTP server. The phone may obtain
the date and time from the server.
Defines whether DHCP Option 42 should override NTP server or not.
When enabled, DHCP Option 42 will override the NTP server if it's set up
on the LAN. The default setting is "Yes".
Configures the date/time used on the phone according to the specified
time zone.
This parameter allows the users to define their own time zone.
The syntax is: std offset dst [offset], start [/time], end [/time]
Default is set to: MTZ+6MDT+5,M4.1.0,M11.1.0
MTZ+6MDT+5
This indicates a time zone with 6 hours offset with 1 hour ahead which is
U.S central time. If it is positive (+) if the local time zone is west of the
Prime Meridian (A.K.A: International or Greenwich Meridian) and
Self-Defined Time Zone
negative (-) if it is east.
M4.1.0,M11.1.0
The 1st number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec)
The 2nd number indicates the nth iteration of the weekday: (1st Sunday,
rd
3 Tuesday…)
The 3rd number indicates weekday: 0,1,2,..,6( for Sun, Mon,
Tues, ... ,Sat)
Therefore, this example is the DST which starts from the First Sunday of
April to the 1st Sunday of November.
Configures the date display format on the LCD. The following formats are
supported:
Date Display Format
Time Display Format

yyyy-mm-dd: 2012-07-02

mm-dd-yyyy: 07-02-2012

dd-mm-yyyy: 02-07-2012

dddd, MMMM dd: Friday, October 12

MMMM dd, dddd: October 12, Friday
Configures the time display in 12-hour or 24-hour format on the LCD. The
default setting is in 12-hour format.
Settings -> Web Service
Enable Weather Update
FIRMWARE VERSION 1.0.6.11
Configures to enable or disable weather update on the phone. The
default setting is "Yes". If set to "No", the weather information screen will
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not show.
Configures weather city code for the phone to look up the weather
information. The default setting is "Automatic" and the weather
City Code
information will be obtained based on the IP location of the phone if
available. Otherwise, specify the self-defined city code. For example,
USCA0638 is the city code for Los Angeles, CA, United States.
Specifies the weather update interval (in minutes). The default value is
Update Interval
15 minutes.
Specifies the degree unit for the weather information to display on the
Degree Unit
phone.
Configures to enable or disable currency update on the phone. The
default setting is "Yes". If set to "No", the currency information screen will
not show.
Enable Currency Update
Note:
This option is not applicable to GXP14xx.
Configures currency code for the phone to look up and display the
currency information.
Currency Code
Note:
This option is not applicable to GXP14xx.
Settings -> XML Applications
Configures to enable idle screen XML download. Users could select
Idle Screen XML Download
HTTP/HTTPS/TFTP to download the XML idle screen file. The default
setting is "No".
Download Screen XML At
If set to "Yes", the idle screen XML file will be downloaded when the
Boot-up
phone boots up. The default setting is "No".
User Custom Filename
Specifies the custom file for the idle screen XML file to be downloaded.
Idle Screen XML Server Path
Configures the server path to download the idle screen XML file. This
field could be IP address or URL, with up to 256 characters.
Configures the server path to download the idle screen XML file. This
field could be IP address or URL, with up to 256 characters.
XML Application Server Path
Note:
This option is not applicable to GXP14xx.
XML Application Soft key
Specifies the soft key name displayed on the idle screen for the users to
Label
enter XML application. Please make sure the label name does not
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exceed the soft key range on each model. The default value is "XML
Service".
Note:
This option is not applicable to GXP14xx.
Settings -> Programmable Keys
Assigns a function to the corresponding line key. The key mode options
are:

Line
Regular line key to open up a line and switch line. The Value field
can be left blank.

Shared Line
Share line for Shared Line Appearance feature. Select the Account
registered as Shared line for the line key. The Value field can be left
blank.

Speed Dial
Select the Account to dial from. And enter the Speed Dial number in
the Value field to be dialed.

Busy Lamp Field (BLF)
Select the Account to monitor the BLF status. Enter the extension
number in the Value field to be monitored.

Line Key X
Presence Watcher
This option has to be supported by a presence server and it is tied to
the "Do Not Disturb" status of the phone's extension.

Eventlist BLF
This option is similar to the BLF option but in this case the PBX
collects the information from the phones and sends it out in one
single notify message. PBX server has to support this feature.

Speed Dial via active account
Similar to Speed Dial but it will dial based on the current active
account. For example, if the phone is offhook and account 2 is active,
it will call the configured Speed Dial number using account 2.

Dial DTMF
Enter a series of DTMF digits in the Value field to be dialed during
the call. "Enable MPK Sending DTMF" has to be set to "Yes" first.

Voice Mail
Select Account and enter the Voice Mail access number in the Value
field.

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The last answered calls can be dialed out by using Call Return. The
Value field should be left blank. Also, this option is not binding to the
account and the call will be returned based on the account with the
last answered call.

Transfer
Select Account, and enter the number in the Value field to be
transferred (blind transfer) during the call.

Call Park
Select Account, and enter the call park extension in the Value field to
park/pick up the call.

Intercom
Select Account, and enter the extension number in the Value field to
do the intercom.

LDAP Search
This option is to narrow the LDAP search scope. Enter the LDAP
search base in the Name field. It could be the same or different from
the Base in LDAP configuration under Advanced Settings. The Base
in LDAP configuration will be used if the Name field is left blank.
Enter the LDAP Name/Number filter in the Value field. LDAP search
does not support entering Non-ASCII characters
Assigns a function to the corresponding Multi Purpose Key. The key
mode options are:

Speed Dial
Select the Account to dial from. And enter the Speed Dial number in
the Value field to be dialed.

BLF (Busy Lamp Field)
This option has to be supported on the PBX and it indicates the
status of the extension. The three possible states are idle (green),
Multi Purpose Keys X
busy (red), ringing (blinking red).
(For
GXP2120/GXP2110/GXP2100

Presence Watcher
This option has to be supported by a presence server and it is tied to
only)
the "Do Not Disturb" status of the phone's extension.

Eventlist BLF
This option is similar to the BLF option but in this case the PBX
collects the information from the phones and sends it out in one
single notify message. PBX server has to support this feature.

Speed Dial via active account
Similar to Speed Dial but it will dial based on the current active
account. For example, if the phone is offhook and account 2 is active,
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it will call the configured Speed Dial number using account 2.

Dial DTMF
Enter a series of DTMF digits in the Value field to be dialed during
the call. "Enable MPK Sending DTMF" has to be set to "Yes" first.

Voice Mail
Select Account and enter the Voice Mail access number in the Value
field.

Call Return
The last answered calls can be dialed out by using Call Return. The
Value field should be left blank. Also, this option is not binding to the
account and the call will be returned based on the account with the
last answered call.

Transfer
Select Account, and enter the number in the Value field to be
transferred (blind transfer) during the call.

Call Park
Select Account, and enter the call park extension in the Value field to
park/pick up the call.

Intercom
Select Account, and enter the extension number in the Value field to
do the intercom.

LDAP Search
This option is to narrow the LDAP search scope. Enter the LDAP
search base in the Name field. It could be the same or different from
the Base in LDAP configuration under Advanced Settings. The Base
in LDAP configuration will be used if the Name field is left blank.
Enter the LDAP Name/Number filter in the Value field.
NETWORK PAGE DEFINITIONS
Network -> Basic Settings
Internet Protocol
Selects Prefer IPv4 or Prefer IPv6.
Allows users to configure the appropriate network settings on the phone to
IPv4 Address Type
obtain IPv4 address. Users could select "DHCP", "Static IP" or "PPPoE". By
default, it is set to "DHCP".
DHCP Host name
Specifies the name of the client. This field is optional but may be required by
(Option 12)
some Internet Service Providers.
DHCP Vendor Class ID
(Option 60)
Used by clients and servers to exchange vendor class ID.
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PPPoE Account ID
Enter the PPPoE account ID.
PPPoE Password
Enter the PPPoE Password.
PPPoE Service Name
Enter the PPPoE Service Name.
IPv4 Address
Enter the IP address when static IP is used.
Subnet Mask
Enter the Subnet Mask when static IP is used for IPv4.
Gateway
Enter the Default Gateway when static IP is used for IPv4.
DNS Server 1
Enter the DNS Server 1 when static IP is used for IPv4.
DNS Server 2
Enter the DNS Server 2 when static IP is used for IPv4.
Preferred DNS Server
Enter the Preferred DNS Server for IPv4.
Allows users to configure the appropriate network settings on the phone to
IPv6 Address Type
obtain IPv6 address. Users could select "Auto-configured" or "Statically
configured" for the IPv6 address type.
Static IPv6 Address
IPv6 Prefix Length
IPv6 Prefix
Enter the static IPv6 address when Full Static is used in "Statically configured"
IPv6 address type.
Enter the IPv6 prefix length when Full Static is used in "Statically configured"
IPv6 address type.
Enter the IPv6 Prefix (64 bits) when Prefix Static is used in "Statically
configured" IPv6 address type.
DNS Server 1
Enter the DNS Server 1 for IPv6.
DNS Server 2
Enter the DNS Server 2 for IPv6.
Preferred DNS server
Enter the Preferred DNS Server for IPv6.
Network -> Advanced Settings
Allows the user to enable/disable 802.1X mode on the phone. The default
802.1X mode
value is disabled. To enable 802.1X mode, this field should be set to
EAP-MD5.
802.1X Identity
Enter the Identity for the 802.1X mode.
MD5 Password
Enter the MD5 Password for the 802.1X mode.
802.1X CA Certificate
802.1X Client Certificate
HTTP Proxy
HTTPS Proxy
Upload 802.1X CA certificate to the phone; or delete existed 802.1X CA
certificate from the phone.
Upload 802.1X Client certificate to the phone; or delete existed 802.1X Client
certificate from the phone.
Specifies the HTTP proxy URL for the phone to send packets to. The proxy
server will act as an intermediary to route the packets to the destination.
Specifies the HTTPS proxy URL for the phone to send packets to. The proxy
server will act as an intermediary to route the packets to the destination.
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Layer 3 QoS
Layer 2 QoS
802.1Q/VLAN Tag
Layer 2 QoS 802.1p
Priority Value
Defines the Layer 3 QoS parameter. This value is used for IP Precedence,
Diff-Serv or MPLS. The default value is 12.
Assigns the VLAN Tag of the Layer 2 QoS packets. The default value is 0.
Assigns the priority value of the Layer2 QoS packets. The default value is 0.
Configures the PC port mode. When set to "Mirrored", the traffic in the LAN
PC Port Mode
port will go through PC port as well and packets can be captured by
connecting a PC to the PC port. The default setting is "Enable".
PC Port VLAN Tag
Assigns the VLAN Tag of the PC port.
PC Port Priority Value
Assigns the priority value of the PC port.
Enable LLDP
Control the LLDP(Link Layer Discovery Protocol) service.
MAINTENANCE PAGE DEFINITIONS
Maintenance -> Web Access
Disable Telnet
End User Password
Confirm Password
Disables Telnet access. The default setting is "No".
Allows the administrator to set the password for user-level web GUI access.
This field is case sensitive with a maximum length of 30 characters.
Confirms the end user password field to be the same as above.
Allows users to change the admin password. The password field is purposely
Admin Password
hidden for security purpose. This field is case sensitive with a maximum length
of 30 characters.
Confirm Password
Confirms the admin password field to be the same as above.
Maintenance -> Upgrade and Provisioning
Firmware Upgrade and
Provisioning
Specifies how firmware upgrading and provisioning request to be sent: Always
Check for New Firmware, Check New Firmware only when F/W pre/suffix
changes, Always Skip the Firmware Check.
XML Config File
The password for encrypting the XML configuration file using OpenSSL. This
Password
is required for the phone to decrypt the encrypted XML configuration file.
HTTP/HTTPS User
Name
The user name for the HTTP/HTTPS server.
HTTP/HTTPS Password
The password for the HTTP/HTTPS server.
Upgrade Via
Allows users to choose the firmware upgrade method: TFTP, HTTP or HTTPS.
Always Authenticate
Before Challenge
Firmware Server Path
Defines the server path for the firmware server. It could be different from the
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configuration server for provisioning.
Config Server Path
Defines the server path for provisioning. It could be different from the firmware
server for upgrading.
This field enables user to store different versions of firmware files in one single
Firmware File Prefix
directory on the firmware server. If configured, only the firmware file with the
matching prefix will be downloaded.
This field enables user to store different versions of firmware files in one single
Firmware File Postfix
directory on the firmware server. If configured, only the firmware file with the
matching postfix will be downloaded.
This field enables user to store different configuration files in one single
Config File Prefix
directory on the configuration server. If configured, only the configuration file
with the matching prefix will be downloaded.
This field enables user to store different configuration files in one single
Config File Postfix
directory on the configuration server. If configured, only the configuration file
with the matching postfix will be downloaded.
Default setting is “Yes”. DHCP option 66 originally was only designed for TFTP
Allow DHCP Option 43
server. Later on it was extended to support an HTTP URL. GXP phones
and Option 66 Override
support both TFTP and HTTP server via option 66. Users can also use DHCP
Server
option 43 vendor specific option to do this. DHCP option 43 approach has
priorities.
Allow DHCP Option 120
Enables DHCP Option 120 from local server to override the SIP Server on the
to override SIP Server
phone. The default setting is "No".
3CX Auto Provision
Phone will multicast SUBSCRIBE for provision if this feature is enabled.
Automatic Upgrade
Enables automatic upgrade and provisioning. The default setting is "No".
Hour of the Day (0-23)
Day of the Week (0-6)
Authenticate Conf File
Defines the hour of the day to check the HTTP/TFTP server for firmware
upgrades or configuration files changes. The default value is 1.
Defines the day of the week to check HTTP/TFTP server for firmware
upgrades or configuration files changes. The default value is 1.
Authenticates configuration file before acceptance. The default setting is "No".
Maintenance -> Syslog
Syslog Server
The URL or IP address of the syslog server for the phone to send syslog to.
Selects the level of logging for syslog. The default setting is "None". There are
4 levels: DEBUG, INFO, WARNING AND ERROR.
Syslog Level
Syslog messages are sent based on the following events:

product model/version on boot up (INFO level);

NAT related info (INFO level);

sent or received SIP message (DEBUG level);
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Send SIP Log

SIP message summary (INFO level);

inbound and outbound calls (INFO level);

registration status change (INFO level);

negotiated codec (INFO level);

ethernet link up (INFO level);

SLIC chip exception (WARNING and ERROR levels);

memory exception (ERROR level).
Configures whether the SIP log will be included in the syslog messages or not.
The default setting is "No".
Auto Recover From
Configures whether auto recover or not when the phone is running abnormal.
Abnormal
The default setting is "Yes".
Maintenance -> Language
Display Language
Selects display language on the phone.
Language File Postfix
Specifies the language file postfix for downloaded language.
Maintenance -> TR-069
Enable TR-069
Enables TR-069. The default setting is "No".
ACS URL
URL for TR-069 Auto Configuration Servers (ACS).
TR-069 Username
ACS username for TR-069.
TR-069 Password
ACS password for TR-069.
Periodic Inform Enable
Periodic Inform Interval
Connection Request
Username
Connection Request
Password
Enables periodic inform. If set to "Yes", device will send inform packets to the
ACS. The default setting is "No".
Sets up the periodic inform interval to send the inform packets to the ACS.
The user name for the ACS to connect to the phone.
The password for the ACS to connect to the phone.
Connection Request Port
The port for the ACS to connect to the phone.
CPE SSL Certificate
The Cert File for the phone to connect to the ACS via SSL.
CPE SSL Private Key
The Cert Key for the phone to connect to the ACS via SSL.
Maintenance -> Security
Configures the access control for the users to configure from keypad Menu.
There are three different options:
Configuration via Keypad

Unrestricted. All the options can be accessed in keypad Menu.
Menu

Basic settings only. The CONFIG option will not be available in LCD
Menu.

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options will not be available in LCD menu.
If set to "Yes", the keypad can be locked by pressing and holding the STAR *
key for about 4 seconds. A lock icon will show indicating the keypad is locked.
The default setting is "Yes".
Enable STAR key
Keypad locking
Note:
When the keypad is locked, users would need press and hold the STAR * key
for about 4 seconds and then enter the password to unlock it. If the Star Key
Lock is enabled without specifying password, user can press and hold the
STAR * key for 4 seconds and press OK to unlock the phone.
Password to lock/unlock
Configures the password to lock/unlock the keypad. The password field allows
number with up to 32 characters.
SIP TLS Certificate
SSL Certificate used for SIP TLS Transport.
SIP TLS Private Key
SSL Private key used for SIP TLS Transport.
SIP TLS Private Key
SSL Private key password used for SIP TLS Transport.
Password
Download Device
Configuration
Web Access Mode
Disable SSH
Click to download the device configuration file in .txt format.
Sets the protocol for web interface as HTTP or HTTPS. Default setting is
HTTP.
Disable SSH access. SSH is enabled by default.
PHONEBOOK PAGE DEFINITIONS
Phonebook -> Contacts
Add Contact
Specify Contact’s First Name, Last Name, Phone Number, Accounts and
Groups to add one new contact in phonebook.
Phonebook -> Phonebook Management
Enable Phonebook XML
Download
Configures to enable phonebook XML download. Users could select
HTTP/HTTPS/TFTP to download the phonebook file. The default setting is
"Disabled".
Phonebook XML Server
Configures the server path to download the phonebook XML. This field could
Path
be IP address or URL, with up to 256 characters.
Phonebook Download
Interval
Configures the phonebook download interval (in minutes). If it's set to 0, the
automatic download will be disabled. The default value is 0. The valid range is
5 to 720 minutes.
Remove Manually-edited
If set to "Yes", when XML phonebook is downloaded, the entries added
Entries on Download
manually will be automatically removed. The default setting is "Yes".
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Sort Phonebook by.
Download XML
Phonebook
Upload XML Phonebook
Phonebook Key Function
Sort the phonebook on the selection of first name or last name.
Click on "Download" to download the XML phonebook file to local PC.
Click on "Upload" to upload local XML phonebook file to the phone.
Control the behavior of phonebook key. There are four options: Default, LDAP
Search, Local Phonebook, Local Group.
Phonebook -> LDAP
Server Address
Configures the IP address or DNS name of the LDAP server.
Port
Configures the LDAP server port.
Configures the LDAP search base. This is the location in the directory where
the search is requested to begin.
Base
Example:
dc=grandstream, dc=com
ou=Boston, dc=grandstream, dc=com
User Name
Password
Configures the bind "Username" for querying LDAP servers. Some LDAP
servers allow anonymous binds in which case the setting can be left blank.
Configures the bind "Password" for querying LDAP servers. The field can be
left blank if the LDAP server allows anonymous binds.
Configures the filter used for number lookups.
Examples:
(|(telephoneNumber=%)(Mobile=%) returns all records which has the
LDAP Number Filter
"telephoneNumber" or "Mobile" field starting with the entered prefix;
(&(telephoneNumber=%)
(cn=*))
returns
all
the
records
with
the
"telephoneNumber" field starting with the entered prefix and "cn" field set.
Configures the filter used for name lookups.
Examples:
(|(cn=%)(sn=%)) returns all records which has the "cn" or "sn" field starting
with the entered prefix;
LDAP Name Filter
(!(sn=%)) returns all the records which do not have the "sn" field starting with
the entered prefix;
(&(cn=%) (telephoneNumber=*)) returns all the records with the "cn" field
starting with the entered prefix and "telephoneNumber" field set.
LDAP Version
Selects the protocol version for the phone to send the bind requests. The
default setting is "Version 3".
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Specify the "name" attributes of each record which are returned in the LDAP
search result. This field allows the users to configure multiple space separated
LDAP Name Attributes
name attributes.
Example:
gn
cn sn description
Specifies the "number" attributes of each record which are returned in the
LDAP search result. This field allows the users to configure multiple space
LDAP Number Attributes
separated number attributes.
Example:
telephoneNumber
telephoneNumber Mobile
Configures the entry information to be shown on phone's LCD. Up to 3 fields
LDAP Display Name
can be displayed.
Example:
%cn %sn %telephoneNumber
Max. Hits
Search Timeout
Sort Results
LDAP Lookup
Specifies the maximum number of results to be returned by the LDAP server. If
set to 0, server will return all search results. The default setting is 50.
Specifies the interval (in seconds) for the server to process the request and
client waits for server to return. The default setting is 30 seconds.
Specifies whether the searching result is sorted or not. The default setting is
"No".
Configures to enable LDAP number searching when dialing and receiving
calls.
Configures the display name when LDAP looks up the name for incoming call
or outgoing call. This field must be a subset of the LDAP Name Attributes.
Lookup Display Name
Example:
gn
cn sn description
NAT SETTINGS
If the devices are kept within a private network behind a firewall, we recommend using STUN Server. The
following settings are useful in the STUN Server scenario:

STUN Server
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Under Settings->General Settings, enter a STUN Server IP (or FQDN) that you may have, or look up
a free public STUN Server on the
internet and enter it on this field. If using Public IP, keep this field blank.

Use Random Ports
It is under Settings->General Settings. This setting depends on your network settings. When set to
"Yes", it will force random generation of
both the local SIP and RTP ports. This is usually necessary when multiple GXPs are behind the
same NAT. If using a Public IP address, set this parameter to "No".

NAT Traversal
It is under Accounts X->Network Settings. Default setting is "No". Enable the device to use NAT
traversal when it is behind firewall on a private
network. Select Keep-Alive, Auto, STUN (with STUN server path configured too) or other option
according to the network setting.
WEATHER UPDATE
To customize GXP2120/GXP2110/GXP2100/GXP14xx to display weather information for the preferred city,
users could go to web GUI->Settings->Web Service page and enter the city code in the following options:
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By default the City Code is set to "Automatic", which allows the phone to obtain weather information
based on the IP location detected. To use "Self-Defined City Code" option, please follow the steps below
to obtain the correct city code:

In a web browser, go to www.weather.com;

Enter the city name in the search field. For example, Boston, MA. And click on "SEARCH";

The searching result will show in a new window with URL in the browser's address bar. For example,
http://www.weather.com/weather/right-now/Boston+MA+USMA0046

In the above link, USMA0046 is the city code to be filled in "Self-Defined City Code" option.
Users could then further configure the "Update Interval" and "Degree Unit" for weather information
display.
PUBLIC MODE
The GXP2120/GXP2110/GXP2100/GXP14xx supports hot desking using public mode. Under public mode,
users could login the phone with the SIP account User ID and password. Please follow the steps below to
configure the phone for public mode:

Fill up the SIP server address for account 1 first;

Under Web GUI->Settings->General Settings, set "Public Mode" option to "Yes". Click "Save and
Apply" and reboot the phone;

When the phone boots up, SIP User ID and Password to register to the configured SIP server in
account 1 will be required. Enter the correct account information to log in to the phone. When entering
the account information, press softkey "123"/"abc" to toggle input method;

In login page, pressing CONF button on the phone will show phone's IP address;

After using the phone, go to LCD MENU->LogOut to log off the public mode.
EDITING CONTACTS AND CLICK-TO-DIAL
From GXP2120/GXP2110/GXP2100/GXP14xx Web GUI, users could view contacts, edit contacts, or dial
out with Click-to-Dial feature
on the top of the Web GUI. In the following figure, the Contact page
shows all the added contacts (manually or downloaded via XML phonebook). Here users could add new
contact, edit selected contact, or dial the contact/number.
Before using the Click-To-Dial feature, make sure the option "Click-To-Dial Feature" under web
GUI->Settings->Call Features is turned on. By default it's disabled and the dialing icon in web GUI is in
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grey
.
When clicking on the
icon on the top menu of the Web GUI, a new dialing window will show for you
to enter the number. Once Dial is clicked, the phone will go off hook and dial out the number from selected
account. Please see Figure 4 and Figure 5 in the following pages for more details.
Additionally, users could directly send the command for the phone to dial out by specifying the following
URL in PC's web browser, or in the field as required in other call modules.
http://ip_address/cgi-bin/api-make_call?phonenumber=1234&account=0&password=admin/123
In the above link, replace the fields with

ip_address:
Phone's IP Address.

phonenumber=1234:
The number for the phone to dial out

account=0:
The account index for the phone to make call. The index is 0 for account 1, 1 for account 2, 2 for
account 3, and etc.

password=admin/123:
The admin login password or user login password of phone's Web GUI.
Click to dial from
Add contacts.
available lines.
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Click to call this contact
Edit contact.
from the phone.
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Figure 6: Web GUI - Phonebook->Contacts
Figure 7: Click-to-Dial
SAVING THE CONFIGURATION CHANGES
After users makes changes to the configuration, press the "Save" button will save but not apply the
changes until the "Apply" button on the top of web GUI page is clicked. Or, users could directly press
"Save and Apply" button. We recommend rebooting or powering cycle the phone after applying all the
changes.
REBOOTING FROM REMOTE LOCATIONS
Press the "Reboot" button on the top right corner of the web GUI page to reboot the phone remotely. The
web browser will then display a reboot message. Wait for about 1 minute to log in again.
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UPGRADING AND PROVISIONING
The GXP2120/GXP2110/GXP2100/GXP14xx can be upgraded via TFTP/HTTP/HTTPS by configuring the
URL/IP Address for the TFTP/HTTP/HTTPS server and selecting a download method. Configure a valid
URL for TFTP or HTTP/HTTPS; the server name can be FQDN or IP address.
Examples of valid URLs:
firmware.grandstream.com
fw.ipvideotalk.com/gs
There are two ways to setup a software upgrade server: The LCD Keypad Menu or the Web Configuration
Interface.
UPGRADE VIA KEYPAD MENU
Follow the steps below to configure the upgrade server path via phone's keypad menu:

Press MENU button and navigate using Up/Down arrow to select Config;

In the Config options, select Upgrade;

Enter the firmware server path and select upgrade method. The server path could be in IP address
format or FQDN format;

Press the "OK" softkey. A reboot message window will be prompt;

Reboot the phone to have the change take effect.
When upgrading starts, the screen will show upgrading progress. When done you will see the phone
restarts again. Please do not interrupt or power cycle the phone when the upgrading process is on.
UPGRAGE VIA WEB GUI
Open a web browser on PC and enter the IP address of the phone. Then, login with the administrator
username and password. Go to Maintenance->Upgrade and Provisioning page, enter the IP address or
the FQDN for the upgrade server in "Firmware Server Path" field and choose to upgrade via TFTP or
HTTP/HTTPS. Update the change by clicking the "Save and Apply" button. Then "Reboot" or power cycle
the phone to update the new firmware.
When upgrading starts, the screen will show upgrading progress. When done you will see the phone
restart again. Please do not interrupt or power cycle the phone when the upgrading process is on.
Firmware upgrading takes around 60 seconds in a controlled LAN or 5-10 minutes over the Internet. We
recommend completing firmware upgrades in a controlled LAN environment whenever possible.
NO LOCAL TFTP/HTTP SERVERS
For users that would like to use remote upgrading without a local TFTP/HTTP server, Grandstream offers a
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NAT-friendly HTTP server. This enables users to download the latest software upgrades for their phone via
this server. Please refer to the webpage:
http://www.grandstream.com/support/firmware
Alternatively, users can download a free TFTP or HTTP server and conduct a local firmware upgrade. A
free windows version TFTP server is available for download from :
http://www.solarwinds.com/products/freetools/free_tftp_server.aspx
http://tftpd32.jounin.net/.
Instructions for local firmware upgrade via TFTP:
1. Unzip the firmware files and put all of them in the root directory of the TFTP server;
2. Connect the PC running the TFTP server and the phone to the same LAN segment;
3. Launch the TFTP server and go to the File menu->Configure->Security to change the TFTP server's
default setting from "Receive Only" to "Transmit Only" for the firmware upgrade;
4. Start the TFTP server and configure the TFTP server in the phone’s web configuration interface;
5. Configure the Firmware Server Path to the IP address of the PC;
6. Update the changes and reboot the phone.
End users can also choose to download a free HTTP server from http://httpd.apache.org/ or use
Microsoft IIS web server.
CONFIGURATION FILE DOWNLOAD
Grandstream SIP Devices can be configured via the Web Interface as well as via a Configuration File
(binary or XML) through TFTP or HTTP/HTTPS. The "Config Server Path" is the TFTP or HTTP/HTTPS
server path for the configuration file. It needs to be set to a valid URL, either in FQDN or IP address format.
The "Config Server Path" can be the same or different from the "Firmware Server Path".
A configuration parameter is associated with each particular field in the web configuration page. A
parameter consists of a Capital letter P and 2 to 3 (Could be extended to 4 in the future) digit numeric
numbers. i.e., P2 is associated with the "Admin Password" in the Web GUI->Maintenance->Web/Telnet
Access page. For a detailed parameter list, please refer to the corresponding firmware release
configuration template.
When GXP2120/GXP2110/GXP2100/GXP14xx boots up, it will send TFTP or HTTP/HTTPS requests to
download configuration files, “cfg000b82xxxxxx” and“cfg000b82xxxxxx.xml”, where “000b82xxxxxx” is the
MAC address of the phone. If the download of “cfgxxxxxxxxxxxx.xml” is not successful, phone will issue
request for a generic configuration file “cfg.xml”. Configuration file name should be in lower case letters.
For more details on XML provisioning, please refer to:
http://www.grandstream.com/general/gs_provisioning_guide_public.pdf
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 78 of 81
RESTORE FACTORY DEFAULT SETTINGS
Warning:
Restoring the Factory Default Settings will delete all configuration information on the phone. Please
backup or print all the settings before you restore to the factory default settings. Grandstream is not
responsible for restoring lost parameters and cannot connect your device to your VoIP service provider.
Please follow the instructions below to reset the phone:

Press MENU button to bring up the keypad configuration menu;

Select "Config" and enter;

Select "Factory Reset";

A warning window will pop out to make sure a reset is requested and confirmed;

Press the "OK" softkey to confirm and the phone will reboot. To cancel the Reset, press Cancel
softkey instead.
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 79 of 81
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EXPERIENCING THE GXP2120/GXP2110/GXP2100/GXP14xx
Please visit our website: http://www.grandstream.com to receive the most up- to-date updates on firmware
releases, additional features, FAQs, documentation and news on new products.
We encourage you to browse our product related documentation, FAQs and User and Developer Forum
for answers to your general questions. If you have purchased our products through a Grandstream
Certified Partner or Reseller, please contact them directly for immediate support.
Our technical support staff is trained and ready to answer all of your questions. Contact a technical support
member or submit a trouble ticket online to receive in-depth support.
Thank you again for purchasing Grandstream IP phone, it will be sure to bring convenience and color to
both your business and personal life.
FIRMWARE VERSION 1.0.6.11
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
Page 81 of 81
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