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MTG200 User Manual V1.0
Dinstar Technologies Co., Ltd.
Address: Floor 6, Guoxing Building, Changxing Road, Nanshan District, Shenzhen, China 518057
Telephone: +86-755-26456664
Fax: +86-755-26456659
Emails: [email protected], [email protected]
Website: www.dinstar.com
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Amendment Records
File Name
Version
Date
Authors
MTG200 User Manual
1.0
01/08/2011
Technical Support Department
MTG200 User Manual
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Contents
MTG200 User Manual
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MTG200 User Manual
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1. Overview
1.1 Product Introduction
MTG200 series is a kind of digital trunk gateway based on embedded operating system. It supports standard SIP protocol, with large-capacity carrier class telephone trunk gateway functions.
Currently it supports 1/2/4 E1/T1 interfaces and can realize intercommunication with mainstream manufacturers soft switch system, and interwork with carrier's local Telephone exchange by PRI interface. A typical network diagram shows the function of MTG200 as below.
Figure 1-1-1Application topology
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1.2 Equipment Structure
1.2.1 Rear View
Figure 1-2-1 MTG200 Rear View
Table 1-2-1 Description of MTG200 Rear View
PWR The power interface. DC12V.1A
Port0-Port3 E1/T1 Port. There are 4E1 if you have buy a MTG200-4E1/T1
FE0 The Service Ethernet Interface, standard 10/100BASE-TX Ethernet interfaces.
Default IP address is 192.168.1.111，default subnet mask is 255.255.255.0
FE1 Management Ethernet Interface. Default IP address is 192.168.11.1, default subnet mask is 255.255.255.0
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1.2.2 Front View
Figure 1-2-2 MTG200 Front View
LED
POWER
RUN
ALM
RST
CONSOLE
E1/T1
LINK
SPEED
Color
Green
Table 1-2 -2 Description of MTG200 Front View
Name Status
Off
Power status indicator
On
Description
Power is off
Power is on
Green Register indicator
Fast blinking Register
Slow blinking Unregister
Yellow The failure of device indicator
Off
On
Normal
Failed
Reset button, it is used to restart the device
RS232 console port: it can be used to debug and configure the device. The baud rate is 115200 bps.
Indicating the connection state of device E1/T1. 0, 1,2,3indicates the connection state of E1/T1 interfaces respectively
Indicating the connection state of the network . 0 indicates FE0 and 1 indicates
FE1
Off 10Mbps
Yellow Indicating the network bandwidth
On 100Mbps
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1.3 Functions and Features
1.3.1 Protocol standard supported
● Standard SIP /PRI protocol
● Dynamic Host Configuration Protocol (DHCP)
● Point-to-Point Protocol over Ethernet (PPPoE)
● Hypertext Transfer Protocol (HTTP)
● Domain Name System (DNS)
● ITU-T G.711A-Law/U-Law、G.723.1、G.729AB、iLBC(optional)
1.3.2 System function
● PLC,VAD and CNG
● DTMF mode: RFC 2833, SIP INFO and INBAND
● T.38/ Pass-Through FAX over IP
● HTTP/Telnet configuration
● Firmware upgrade by TFTP/Web
1.3.3 Industrial standards supported
● Stationary use environment: EN 300 019: Class 3.1
● Storage environment: EN 300 019: Class 1.2
● Transportation environment: EN 300 019: Class 2.3
● Acoustic noise: EN 300 753
● CE EMC directive 2004/108/EC
● EN55022: 2006+A1:2007
● EN61000-3-2: 2006,
● EN61000-3-3: 1995+A1: 2001+A2: 2005
● EN55024: 1998+A1: 2001+A2: 2003
● Certifications: FCC, CE
1.3.4 General hardware specification
● Power supply: 12VDC, 1A
● Temperature: 0~40℃(operational),-20~70℃(storage)
● Humidity: 10%~90%, no condensation
● Max power consumption: 15W
● Dimension(mm): 210*150*38
● Net weight: 0.75kg
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2. Parameter setting
2.1 Login
Enter the IP of FE1 or FE0 in customer’s browser. FE1 default IP address is 192.168.11.1, FE0 default IP address is 192.168.1.111. It will request customer to input user name and password.
Default user name and password are “admin”.
If customer modified the default IP or forgot the IP, that can’t enter the configuration page. Please connect PC and device serial with the serial line. Enter the CLI to view or modify the equipment
IP. Here IP is set to 172.16.33.62. In addition, hold down the RST button to restart the device, customer can regain the port’s default IP. Then enter the IP address of device in the browser address bar. Customer will see the following page.
Figure 2-1-1 Login interface
The default user name and password is "admin". To guarantee the system safety, when login for the first time. The system will prompt the user to modify the password. The interface is shown as below.
Figure 2-1-2 Modify Password
After inputting the old password, input a new password and confirm it by inputting it again.
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2.2 Status &Statistics
Show the status of trunk and statistics of call.
2.2.1 System Information
This configuration page includes general information and version information.
Figure 2-2-1 System Information
Table 2-2-1 Description of System Information
MAC address
Service Ethernet Mode
MAC address of FE1 port.
The network mode of FE1
Service Ethernet Interface Include IP address、subnet mask、default gateway of FE1
Management Ethernet Interface Include IP address、subnet mask of FE0
DNS Server
System Up Time
IP addresses of primary DNS server
Time elapsed from device power on to now
Traffic Statics
Equipment Type
Hardware Version
DSP Version
Web Version
Software Version
Built Time
Total bytes of message received and sent by FE1 port
Equipment type; this equipment is: MTG200
Hardware version of device
Driver version
Version of current WEB interface of device
Software version of device running currently
The build time of current software version
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2.2.2 E1/T1 Status
Figure 2-2-2 E1/T1 status
E1/T1 Port Status
E1/T1 Channel Status
Table 2-2-2 Description of E1/T1 status
1.LOS Alarm: Signal loss alarm, this alarm is created when receiving is lost, please check the physical connection whether disconnected.
2.RRA Alarm: Receive Remote Alarm, when distant end detects LOS alarm or LFA alarm, it will insert an alarm message to near end device in transmit data, check the device of opposite terminal to see if it is perfect.
3.AIS Alarm: Alarm indicating; during a time interval, when received data is detected to have only 2 or less than 2 zeros, then AIS alarm is created, check line device.
4.Disable: Means that this E1/T1 is not used.
5.ISDN/SS7 Signal Alarm: Means physical connection is normal, signaling link has problem.
6.Active-OK: Means that physical connection and signaling link are normal.
1.Non Voice: Non voice channel, which used as a synchronization channel
2.Idle: Means this channel is idle, when the channel is enabled and the cable is connected OK.
3.Signal: signal channel
4.Busy: Means this channel is occupied
5.Fault: when the channel is enabled and the cable is not connected.
6.Disable: Have not use this E1/T1 trunk
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2.2.3 PSTN Trunk Status
Figure 2-2-3 PSTN Trunk Status
PRI Trunk No
Trunk Name
E1/T1 Port No
Link Status
2.2.4 IP Trunk Status
Table 2-2-3 Description of PSTN Trunk Status
The number of PRI trunk, each trunk corresponds to a PRI link
Identification of the trunk can be remembered easily.
Indicate the E1/T1 line occupied by the PRI trunk.
Indicate whether the PRI link is established.
Figure 2-2-4 IPTrunk Status
Table 2-2-4 Description of IP Trunk Status
SIP Trunk No
Username
The number of SIP trunk
When SIP trunk is under registered mode, change the value in the configuration shown in the account registration, If SIP trunk is under non-registered mode, the value is meaningless, as '---'
Peer and Access, peer is peer to peer mode, access is access mode Trunk Mode
Register Status
Indicate the status of SIP trunk （ access mode ） , register or unregister, when is under peer to peer mode, the values is meaningless, as '---'
Link Status Established and Fault status.
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2.2.5 PRI Call Statistics
Figure 2-2-5 PRI call statistics
PRI Trunk No
Trunk Name
Current Calls
Accumulated Calls
Percent of Call
Completed
2.2.6 SIP Call Statistics
Table 2-2-5 Description of PRI call statistics
The number of PRI trunk
The name used to describe the PRI trunk
Number of lines that are being called currently
Total number of calls from running start of system to current time.
The percent of calls completed in all calls.
Figure 2-2-6 SIP Call Statistics
SIP Trunk No
Trunk Name
Current Calls
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Table 2-2-6 Description of SIP Call Statistics
The number of SIP trunk
The name used to describe the PRI trunk
Number of lines that are being called currently
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2.3 Network Configuration
Figure 2-3-1 Network Configuration
Table 2-3-1 Description of Network Configuration
Service
Ethernet
Interface
Obtain IP address automatically
Use the following IP address
PPPoE
If Selected, the MTG will obtain IP address via DHCP
If Selected ,Set a static IP for Service Ethernet
Interface .You need to fill the IP address, Subnet Mask, and Default Gateway
If users approach the net via PPPoE, please Select it and fill your account and password.
Fill the IP of Management Ethernet Interface Manageme nt Ethernet
Interface
IP Address
Subnet Mask Fill the Subnet Mask of Management Ethernet Interface
DNS Server
Obtain DNS server address automatically
Use the following DNS server addresses
If selected, the MTG will obtain DNS server IP address via DHCP
If selected, you need fill Primary DNS server addresses , the secondary DNS Server is Optional
Note: FE0 port IP and FE1 port IP should be set in different segments. After configure the network address, and restart the gateway configuration to take effect.
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2.4Voice & Fax Configuration
Figure 2-4-1 Voice & Fax Configuration
Disconnect Call on Silence
Detection
Silence Detection Period
PSTN in Gain
IP in Gain
Table 2-4-1 Description of Voice & Fax Configuration
Silence time out is detected, end of the call when selected
“Yes”
The interval time of silence detection
Incoming PSNT gain
Incoming IP gain
PSTN in No Answer Timeout
IP in No Answer Timeout
Fax Transport Mode
The no answer timeout of a call which make from PSTN
The no answer timeout of a call which make from VoIP
Two modes are provided: T.38 and Pass-through, default option is T.38
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2.5 Protocol Configuration
2.5.1 PRI Parameter
Figure 2-5-1 PRI Parameter
Calling Party Numbering
Plan
Table 2-5-1 Description of PRI Parameter
Provide 6 plans: Unknown, ISDN/Telephony numbering plan, data numbering plan, telegraph numbering plan, national standard numbering plan, private numbering plan. The default is
ISDN/Telephony numbering plan.
Calling Party Number Type 6 optional types are provided for calling party: Unknown,
International number, National number, Network special number,
User number, Short code dialing. The default option is Unknown.
Screening Indicator for
Displaying Caller Number
4 options available: User provider, no shield; User provide, check and send; User provide, check and having failure; Network provide. The default option is: User provider, no shield.
Screening Indicator for No
Displaying Caller Number
Called Party Numbering
Plan
4 options available: User provider, no shield; User provide, check and send; User provide, check and having failure; Network provide. The default option is: User provider, no shield.
Provide 6 plans: Unknown, ISDN/Telephony numbering plan, data numbering plan, telegraph numbering plan, national standard numbering plan, private numbering plan. The default is
ISDN/Telephony numbering plan.
Called Party Number Type 6 optional types are provided for called party: Unknown,
International number, National number, Network special number,
Information Transfer
Capability
User number, Short code dialing. The default option is Unknown.
Support speech and 3.1khz audio
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2.5.2 SIP Parameter
Figure 2-5-2 SIP Parameter
Local SIP Port
Table 2-5-2 Description of SIP Parameter
Local SIP monitoring port, the default is 5060
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2.6 Profile Definitions
2.6.1 Coder Group
Figure 2-6-1 Coder Group
Coder Group
Table 2-6-1 Description of Coder Group
Used for configure the voice codec parameters, through it can configured voice capabilities into 8 groups, each group can have different audio capabilities, such as the priority of voice codec, packaging length and whether to support silence suppression
Coder Group ID ID standard for Voice Ability, total with 8 groups, where 0 is the default group ID number, the codec that MTG equipment support in the grouping will be displayed in 0 group ,on the map only shows 4 kinds , mean MTG equipment only support this 4 codecs.
Support 4 kinds of audio codec. G711A/G711U/G729/G723/iLBC
Coder name is the interpretation of the field, each codec has a unique
Coder Name
Payload Type value, refer to RFC3551
Packetization Time(ms) Voice Codec packetization time, you can define different kinds of coding
Rate(kbps/s)
Silence Suppression and decoding, minimum packetization time
The proportion of the data-stream that is useful
It is disabled by default. During talking, the bandwidth occupied by voice transmission will be released automatically for silence party or when talk is paused.
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2.6.2 Dial Plan
Figure 2-6-2 Dial Plan
Dial plan configuration used to receive numbers, you can configure different prefix number, these rules can be divided into 5 groups, separate with a dial plan ID, where 0 is the default setting.
Notes:
1. In order to ensure each rule can take effect, long matching numbers (prefix) rule dial plan index value need smaller, so when through the file into the rules, need put t long matching numbers
(prefix) rule before the file
2. No maximum length is 30, this value is the number of the total length, including the prefix length, such prefix is 0755, the maximum value of Maximum Length is only 26, and "."
Wildcard is not included in the number length
Figure 2-6-3 Add Dial Plan
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Dial Plan ID
Dial Plan Index
Prefix
Minimum Length
Maximum Length
Table 2-6-2 Description of Add Dial Plan
The number to identify a dial plan
Dial plan priority rules take effect in accordance with dial plan index size, and not according to the maximum number received.
Match number, "." representative of any number
The minimum receiving Number length (0 to 30). If receive a number equal to the minimum length greater than, less than equal to the maximum length, the number will be used to continue the call. If the maximum length, determine the number to receive a complete, will no longer receive a new number, and immediately began to number analysis, if there are numbers continue to be received, the system will give up these numbers.
The largest Received number length (0 to 30), the maximum number length that can be received, if the received number in this length, the system will determine the receiving number is completed, no longer continue to receive numbers, immediately begin numbers analyzed, If there are numbers keep to send over, the system will drop the new numbers dial plan rules can through management configuration-> Data Restore into dial plan, the file is a txt format.
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2.6.3 Dial Timeout
Figure 2-6-4 Dial Timeout
Figure 2-6-5 Add Dial Timeout
Dial timeout ID description
Initial Digit Timeout
Before Minimum Number
Length Timeout(S)
After Minimum Number
Length Timeout(S)
Table 2-6-3 Description of Add Dial Timeout
The number to identify a dial timeout rule
Description of dial timeout
Generally refer to the time from user dial first digit to harvest in prefix number
After receiving prefix number, the number has not yet reached the length of the minimum receiving number, the length of timeout
After receiving number, the number has reached the minimum length, but not reached the maximum length of the dial timeout
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2.6.4 PSTN Profile
Figure 2-6-6 PSTN Profile
PSTN profile is used to configure PSTN call number rules and parameter.
Figure 2-6-7Add PSTN Profile
PSTN Profile ID
Description
Code Group ID
Table 2-6-4 Description of Add PSTN Profile
The number to PSTN Profile
Description of the PSTN Profile
Refer to "Coder Group"
RFC2833 Payload Type The item is 101 by default
There are three ways to send DTMF: RFC2833/SIP INFO/
INBAND, in accordance with the priority choice to send the 1 st
/2 nd
/3 rd
Tx DTMF Option
Dial Plan ID
Dial Timeout ID configuration mode
Refer to "Dial Plan"
Refer to "Dial Timeout"
Receiving of Overlap Dialing Not enabled by default, only enable this feature, “Dial plan” and
“Dial timeout” have the meaning
Remove CLI
Play busy tone to PSTN
Default does not remove CLI
Equipment will play busy tone from IP to PSTN
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2.6.5 IP Profile
Figure 2-6-8 IP Profile
Figure 2-6-9 Add IP Profile
Table 2-6-5 Description of Add IP Profile
The number to mart the IP Profile IP Profile ID
Description Description of the PSTN Profile
Declare RFC2833 in SDP Support by default
Support Early Media
Play Ringback Tone to
PSTN from
Play Ringback Tone to IP from
Wait Peer RTP
Whether support Early Media(183)
I IP-> PSTN call ring back tone player side, if set to local, it will play from the equipment and set to IP , it will play by the called
PSTN->IP call ring back tone player side, if set to local, it will play from the equipment and set to PSTN, it will play by the called
If set to No, will auto send RTP packets during the call, if set to Yes, will wait the RTP packet was sent by the opposite end first ,then send out RTP packets
T30 extended types in SDP: Huawei/ZTE T.30 SDP Expand Type
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2.7 Trunk Configuration
2.7.1 E1/T1 Parameter
Figure 2-7-1 E1/T1 Parameter
Figure 2-7-2 Modify E1/T1 Parameter
Work Mode
PCM Mode
Frame Mode
Line Code
Table 2-7-1 Description of Modify E1/T1 Parameter
E1 or T1, the default is E1
PCM mode: A LAW and Mu LAW, the default is A LAW
The frame modes of E1/T1 are: DF, CRC-4, CRC4_ITU, the default is
CRC-4; the frame modes of T1 are: F12, F4, ESF, F72, the default is F4
Line codes of E1/T1 are: NRZ, CMI, AMI, HDB3, the default is HDB3. The line codes of T1 are: NRZ, CMI, AMI, B8ZS, the default is B8ZS
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2.7.2 PRI Trunk
Figure 2-7-3 PRI Trunk
In this configuration page, users can “Add”, “Delete”, “Modify” PRI trunk.
Figure 2-7-4 Add PRI Trunk
Table 2-7-1 Description of Add PRI Trunk
Select Trunk No
The number of PRI trunk; when you add PRI trunk, 0~7 number will appear in the pull-down box to be selected (the number here depends on E1/T1 physical port number actually existed in MTG). After trunk number is established, fill in corresponding port number in “E1/T1 Port No.”, so as to assign E1/T1 to designated trunk; each PRI trunk corresponds to a E1/T1 port, if it is required to share D channel by several E1/T1, please refer to
“PSTN trunk binding” in route configuration.
PRI Trunk Name Identification of PRI trunk, which can be remembered easily
PRI ID Identification of PRI trunk number to outside (switch side), this number
Is D channel definition generally begin from 0
Indicate whether this E1/T1 has D channel, the default is YES, which means it has D channel.
E1/T1 Port No
Standard Type
ISDN Terminal
Side
E1/T1 port number is numbered according to the physical position sequence of E1/T1, it generally begins from 0.
Interface type of PRI, two types available: ISDN and QSIG; the default is
ISDN.
Indicate PRI network property of E1/T1, it is divided into: “User side” and
“Network side”. When PRI loopback is carried out, the network properties of E1/T1 port at both receiving and sending sides must be different.
ISDN Ring signal The ring signal include Alerting and progress
PSTN profile ID Refer to PSTN profile
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2.7.3 SIP Trunk
Figure 2-7-5 SIP Trunk
Click “Add” to add a SIP Trunk. If costomer want to delete or modify a SIP Trunk, please select the SIP Trunk you want to operation.
Figure 2-7-6 Add SIP Trunk
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Table 2-7-3 Description of Add SIP Trunk
Trunk No
Trunk Name
Registration to
Remote Party
Call mode
The range of number is 1~50
It can be edited freely, which can be identified and remembered easily.
Defined by IETF work group RFC3372, it is a standard used to establish communication between SIP and ISUP; the default is “Yes”; if SIP trunk does not support, then set it to “No”.
Whether register request message to far-side equipment will be sent or not, you can select “Yes” or “No”. There are two modes: peer and access
SIP Username
SIP Password
SIP user name which registers to soft switch/SIP server
SIP password which registers to soft switch/SIP server
Confirm SIP Password Make sure the password matches the password entered above
Expire Time Time interval of sending register request message to opposite equipment
IP Profile ID
Detect Link Status each time; the range is from 1-3600 seconds.
Refer to IP Profile
If select it, the MTG200 will send HEARTBEAT message to peer to make sure the link status is OK.
Remote IP
Remote Port
Incoming SIP
Authentication Type
Password
IP address of remote platform interfacing with this MTG.
Q.931 port of SIP of remote platform interfacing with this MTG, the default is 5060
You can select IP address authentication or password authentication, when “IP Address” authentication is selected, the calling initiated from remote will not subject to domain name or password authentication, only judge whether the IP address is legal or not; if “No” is selected, authentication realm/password authentication will be carried out.
It constitutes SIP protocol safety authentication together with domain name of authentication.
Confirm Password Input password again to verify password
IP to PSTN Limitation IP to PSTN calls; the range is 0~65535, the default is no limitation; If
Yes is selected, then input limited calls in the edit box appeared.
PSTN to IP Limitation PSTN to IP calls, the range is 0~65535; the default is no limitation; If
Yes is selected, then input limited calls in the edit box appeared.
IP to PSTN Time
Control
Enable SIP Trunk
The default setting is disabled. If Enabled is selected, then you can edit the start and stop time of prohibition time interval. Within this time interval, all calls from IP to PSTN are prohibited. (Calls from PSTN to
IP are not limited)
A switch used to enable this SIP trunk or not; you can select “Yes” or
“No”, when “No” is selected, this SIP trunk is invalid.
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2.8 Management Configuration
2.8.1 Management Parameter
Figure 2-8-1 Management Parameter
WEB Port
Telnet Port
Syslog Enable
Server Address
Syslog Level
NTP Enable
Primary NTP server
Address
Primary NTP server
Port
Table 2-8-1Description of Management Parameter
Listening port of local WEB service, the default is 80.
Listening port of local Telnet service, the default is 23.
The default is “No”.
Address for saving system log.
None, Debug, Notice, Warning and Error
Simple Network Management Protocol is enabled or not; the default is No.
The Primary IP address of SNMP management host computer. The host computer of the IP address will carry out monitoring and management to
MTG.
The port where managed device (MTG) provides trap message (it is generally alarm message) to SNMP management host computer, the default is 123.
The Secondary IP address of SNMP Secondary NTP server Address
Secondary NTP server Port
Check Interval
Time Zone
The port of the Secondary IP address of SNMP
Time interval of check
The time zone of local
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2.8.2 Data Backup
Figure 2-8-2 Data Backup database dialplan exception
2.8.3 Data Restore
Table 2-8-2 Description of Data Backup
Click the Backup, and save the database in your PC
Click the Backup, and save the dialplan in your PC
Click the Backup, and save the exception in your PC
Figure 2-8-3 Data Restore
Database
Dialplan
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Table 2-8-3 Description of Data Restore
Click "Browse" to select the Database file, and then click "Restore".
Click "Browse" to select the Dialplan file, and then click "Restore".
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2.8.4 Version Information
Figure 2-8-4 Version Information
Software
Database
Web
2.8.5 Firmware Upload
Table 2-8-4 Description of Version Information
The information of firmware
The information of database
The information of Web software
Figure 2-8-5 Firmware Upload
Software
Web
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Table 2-8-5 Description of Firmware Upload
Click "Browse" to select the firmware , and then click "Upload".
Click "Browse" to select the Web software, and then click "Upload".
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2.8.6 Modify Password
Figure 2-8-6 Modify Password
Old Password
New Password
Confirm Password
Table 2-8-6 Description of Modify Password
Current password
The new password verify password
2.8.7 Restart Device
Figure 2-8-7 Restart Device
If you click Restart, a message ("Are you sure?") will be popped up, and then click OK.
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3. FAQ
3.1 How to get the IP address if I have modified the default IP or forgot it ?
Customers have two ways to get the IP address:
1) Press the RST button, then users can regain default IP. Refer to 1.2.1 Front View
2) Connect the CONSOLE with your PC Serial Port. The baud rate is 115200 bps. The user name is "admin"，password is telnet/web login password. If password is reset, the default password is
“admin”. When customers have accessed it and input the command "show int" to get the IP.
3.2 Equipment physical connection to normal, but the network cannot be connected or
network communication is not normal
1) Make sure the network cable is ok or not , can through view the device WAN port or LAN port indicator light to determine the work states of physical connection
2) Makeing sure the connected network devices (router, switch or hub) support 10M/100M adaptive.
Else, connecting the Equipment directly to PC and landing Web , then in the "local connection" .Selecting the correct Ethernet Work Mode
3) Check whether there is a LAN port conflict with the existing IP address
4) Login using the serial port, in the enable mode to view the correct IP and mask, and ping the same segment of the PC or device to see if can pass.
3.3 Equipment can’t register
If the Run LED flashes slowly ,it means unregistered.
1) Check the network connection is working (see above section), whether the Configuration is correct
2) Check whether the LAN firewall setting is inappropriate (such whether limit the network
Communication); If it is, there are two ways to try to resolve:
(2.1) Ask network administrators to open limitation with the equipment’s network communications (it is a special equipment, not afraid of virus attacks);
(2.2) Try to enable the equipment tunnel (Through the WEB for Configuration, Also, please
NOTE, open the tunnel will impact voice quality, Please do not enable the tunnel as far as possible, reference WEB Configuration Interface, Description section).
4) Check whether the Local Network to the SIP PROXY platform network environment is relatively poor or not, and if so, please check Local Network or contact the service provider.
5) If go through those steps, the device still be in trouble, please contact the equipment provider.
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MTG200 User Manual
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4. Glossary
PRI: Primary rate interface
DND: Do-not-Disturb
FMC: Fixed Mobile Convergence
SIP: Session Initiation Protocol
DTMF: Dual Tone Multi Frequency
USSD: Unstructured Supplementary Service Data
PSTN：Public Switched Telephone Network
STUN: Simple Traversal of UDP over NAT
IVR: Interactive Voice Response
IMSI: International Mobile Subscriber Identification Number
IMEI: International Mobile Equipment Identity
DMZ: Demilitarized Zone
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