Witura GSM VOIP Gateway Series User manual
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User Manual
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GSM VOIP Gateway Series
COPYRIGHT ©2011 WITURA CORPORATION SDN BHD
The GSM VOIP Gateway is a broadband relay gateway newly developed by
VinTelecom Technology. It is a new product for seamless connection between
the GSM network and VoIP network. When the mobile phone SIM card is
installed in the GSM VOIP Gateway, users can register the GSM phone to the
VoIP softswitch system. Through the GSM VOIP Gateway, users can realize the
uplink and downlink call s between the GSM network and the VoIP network. In
addition, the GSM VOIP Gateway supports the transparent transmission of the
call er number from the PSTN to the VoIP. The
GSM VOIP Gateway features embedded SIP and H.323 protocols with flexible
setting. The bi-directional password authentication (call authorization) and trust
list authentication greatly minimize the risk of charge losses and the flexible
routing function can meet special requirements of various call forwarding. In
particular, the GSM VOIP Gateway supports multi device groups, with flexible
setting of large GSM gateway groups with different channel numbers. With its
low price, excell ent voice quali ty, and powerful features, the GSM VOIP
Gateway is the first choice for system integrators, traffic operators, and softswit
ch manufacturers.
The GSM VOIP Gateway includes WT-2201, WT-2204 and WT-2208.
1. OVERVIEW
1.1 Introduction
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Color Gray Gray
VoIP Channel 1 4
GSM Channel 1 4
Hardware Parameter Remark
Model WT-2208 Customized
Processor ARM9E 133Mhz
DSP VPDSP101 95Mhz 2 pieces
RAM 16M
FLASH 4M
Power DC12V/3A±10% Input 100V to 240V
GSM Band Default 900M/1800M Default
Optional 850/1900M Customized
Power Consumption Max. 20W
LED RUN, GSM, LAN, PC
Network Adapter 2 100/10BASE-T
Weight 1.204Kg Without AC Adapter
Operating Temperature 0-40°C
Operating Humidity 40%-90% Not Congealed
Color Gray
VoIP Channel 8
GSM Channel 8
Parameter Default Value
Network LAN Dynamic IP (DHCP)
PC Fixed IP 192.168.8.1
Password Admin Admin
user 1234
Default Time Zone GMT+8
5 Factory Default Parameter Table
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Select Tool > Reset to restart the GSM VOIP Gateway.
Hardware Feature Parameter Parameter Remark
Model WT-2201 WT-2204 WT-2208
Processor ARM9E 133Mhz ARM9E 133Mhz
DSP VPDSP101 95Mhz VPDSP101 95Mhz 2pcs
RAM 16M 16M
FLASH 4M 4M
Power DC12V/2A ±10% DC12V/2A ±10% Input 100V to
240V
GSM Band Default
900M/1800M Default
900M/1800M Default
Optional
850/1900M Optional
850M/1900M Customized
Power Consumption Max. 5W Max. 12W
LED RUN, GSM, LAN, PC RUN, GSM, LAN, PC
Network Adapter 2 2 100/10BASE-T
Weight 0.10KG 0.45KG Without
Operating
Temperature 0-40°C 0-40°C
Operating Humidity 40%-90% Not
Congealed 40%-90% Not
Congealed
4 Parameters Of Equipment
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TCP/ IP V4 (IPV6 Automatic Adaptive)
ITU-T H.323 V4 standard
H.2250 V4 standard
H.245 V7 standard
H.235 standard (MD5, HMAC-SHA1)
ITU-T G.711 Alaw/ULaw, G.729A, G.729AB, G.723.1 and GSM voice coding
RFC1889 real-time digital transmission protocol
Firewall penetration technology
SIP V2.0 standard
STUN
Network management protocol (NMP)
PPPoE
PPP authentication protocol (PAP)
Internet control message protocol (ICMP)
TFTP agent protocol
Hypertext transfer protocol (HTTP)
Dynamic host configuration protocol (DHCP)
Domain name system (DNS)
User account authentication (via MD5)
Out-band DTMF relay: RFC 2833 and SIP INFO
ARM9E high-speed processor
Voice coding and voice digital signal processor
Two 10/100MB Ethernet ports that support the IEEE 802.3 standard and
connect the LAN and
PC
LED that dis plays the status of Ethernet ports
Ethernet cable
SIM card that supports the GSM 900M/1800M and GSM 850M/1900M bands
1.2
Protocols
1.3
Hardware Feature
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LINUX OS
Embedded HTTP that accesses internal parameters
PPPoE diali ng
NAT broadband routing function
DHCP cli ent
DHCP server
Software online upgrade
Automatic call ing
Supporting multiple languages
Supporting outgoing SMS calls
1) A GSM VOIP Gateway
2) 12V/2A DC(For WT-2204) or 12V/3A DC (For WT-2208) transformer
3) An Ethernet cable (2 m)
1.5 Product Package List
1.4 Software Feature
1.6 Product Appearance
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Note: During the upgrading, do not cut off the power. Otherwise, the GSM VOIP
Gateway will be damaged.
You can modify the password of the user and administrator. Select Tool > Modify
Password. The password modification page is displayed, as shown in the following
figure. Enter a new password and click “Change”. Then, the password is
successfully modified.
Note: The password modified by users wil l be cleared and restored to the factory
default password after the factory settings are restored.
Select Tool > Restore Factory Settings. The following prompt is displayed.
Click OK. All the parameters of the gateway will be cleared and the gateway will
automatically restart. After the gateway is restarted, all the settings restore to
the factory default settings. This feature can be completed by using the asterisk
command. For details about this operation, see the section of “Asterisk
Instructions”.
3.13.2 Modification of Password
3.13.3 Restore Factory Settings
3.13.4 Reset
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Note: Some of parameters of the gateway wil l not be valid until the gateway is
restarted. Therefore, you are advised to restart the gateway after the parameters
are modified, so that the modification can take effect.
When the new setting is not saved, you can clear all the unsaved parameters.
Select Menu > Tool. The following page is displayed.
Warning! Only experienced users and administrators can implement the online
upgrading.
Select Tool > Online Upgrading. The online upgrading page is displayed, as shown
in the following figure. Enter the complete name and path of the upgrade package,
such as http://118.142.51.162/update/GHS-4.01-12.pkg, and then click “Start”.
The gateway begins to upgrade. After the GSM VOIP Gateway is successfully
upgraded, the gateway will automatically restart.
3.12 Abandon the change
3.13 Tool
3.13.1 Online Upgrading
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1) LAN - The network input port that is connected to the router, Modem, and
switch
2) PC - The network output port that is connected to network sharing
equipment (less than 100 terminals)
3) DC4.5V/2ADC - The output terminal that connects the transformer
equipped with delivery
4) Reset - The reset switch for quick restart of the GSM VOIP Gateway
The GSM VOIP Gateway has 1/8 SIM card slots, an LAN port, and a PC port.
The install ation procedure is as follows:
1. Open the bottom cover of the GSM VOIP Gateway and insert an SIM card
of the local GSM network
2. Connect the LAN port with the upper-layer network equipment with the
Ethernet cable
2
Installation
2.1 Installation Procedure
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3. PC port supports network sharing, so connect the PC port to the computer
or lower-layer switch (HUB or router)
4. Connect the output terminal of the transformer with the power port.
2.2 Connection Figure
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After setting is changed, click “Save” and the new setting will be valid. Otherwise,
the new setting is invalid.
3.11
Save the Change
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SIP Terminal
Disable: It’s not all owed to transfer the PSTN caller number to the VoIP system;
Enable: The CID is set as the SIP caller number.
Use Remote Party ID: The GSM VOIP Gateway will add the PSTN caller number
to the call request signaling of the VoIP system. The signaling is as follows
(provided that the PSTN caller number is 13800000000):
Use CID as SIP caller number: The GSM VOIP Gateway directly initiates the
call request to the VoIP system through the PSTN caller number and adds the
relevant information to Remote Party ID option of the request signaling. The call
request signaling is as follows:
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2.3 LED Indicators
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The description of LED indicators is as follows
LED Description
Power indicator Power indicator This indicator is constantly ON
after connected with power
LAN indicator This indicator is ON after connected with the
network equipment
PC indicator This indicator is ON after connected with the
network equipment and blinks during data
transmission.
RUN indicator
1. The RUN indicator blinks once every 100ms
during startup.
2. When GSM VOIP Gateway is connected with
the server, the RUN indicator bli nks once per
second.
Channel indicator
1. When the GSM module of the GSM VOIP
Gateway logs onto the local GSM2.
2. When this indicator blinks quickly, it indicates
that the GSM VOIP Gateway is trying to log
onto the local GSM network.
3. When the GSM channel of the GSM VOIP
Gateway is activated, this indicator is normally
ON.
2.4 SMS Instructions
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CSeq: 3MESSAGE
max-forwards: 16
date: Tue, 18 Nov 2008 06:36:37 GMT
user-agent: SIPPER for 3CX Phone
p-hint: usrloc applied
Content-Type: text/plain
Content-Length: 26
13682626800
Hello world
Note: The SMS forwarding mode of the GSM VOIP Gateway is only functional
under the SIP protocol.
The GSM VOIP Gateway permit s the transparent transmission of PSTN call er
numbers to the VoIP system in various methods.
H323 Terminal
3.10 Transparent Transmission of PSTN Caller Numbers
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The following is an example that the GSM VOIP Gateway forwards the SMS to the
SIP 3999. The red part is the content of the SMS.
Via: SIP/2.0/UDP 192.168.2.162:5060;branch=z9hG4bK1967685528
CSeq: 4MESSAGE
Max-Forwards: 30
User-Agent: H
Content-Type: text/plain
Content-Length: 28
8613682626865
075583185700
2. The SMS sent to the GSM VOIP Gateway from the SIP is forwarded to the
specified PSTN number.
The following example is about the Hello world sent from SIP 3999 to
13682626800. Where, in the content of the SIP message (in red), the first li ne
indicates the number to receive the SMS. The second line indicates the content of
the SMS.
MESSAGE sip:20001@192.168.2.162:5060 SIP/2.0
From: <sip:3999@192.168.2.89>;tag=5031
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Users can send instructions to the GSM VOIP Gateway through the SMS.
Function Instructions
(Short message content) Remark
Obtain information
from the LAN port INFO or info Case insensitive
Reset the GSM VOIP
Gateway setting RESET Password The keyword RESET is
case insensitive.
Reboot the GSM VOIP
Gateway REBOOT Password The keyword REBOOT
is case insensitive.
1) When “info” or “INFO” is sent to the GSM VOIP Gateway through SMS, the
GSM VOIP Gateway will return immediately the LAN port info to the mobile
phone.
2) When performing reset/reboot through the SMS, the password
authentication is required. The password is identical with that of the admin.
The detail ed procedure is as follows:
a. The keyword “reset” and “reboot” is case insensitive, but the password
is case sensitive.
b. When the reset instruction is sent, the GSM VOIP Gateway will
automatically reboot.
To perform reset, the admin password of GSM VOIP Gateway user is
“tengda”. Input “reset tengda” or “RESET tengda” in the SMS to reset.
To perform reboot, the admin password of GSM VOIP Gateway user is
“tengda”. Input “reboot tengda” or “REBOOT tengda” in the SMS to reboot.
Before setting the page, you need to have the IP address of the PC port of the
gateway first. Connect the computer for setting the gateway to the PC port of the
GSM VOIP Gateway. The GSM VOIP Gateway has a built-in page server that is
used to accept or obtain the HTTP. You can set the related functions for the GSM
VOIP Gateway through the Internet Explorer.
3.
Page Settings
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You can access the setting page of the GSM VOIP Gateway through the IP
address of the LAN port or PC port. The default factory settings are as follows:
A: The LAN port supports the DHCP (dynamic IP address). Users can dial the
SIM card number of the gateway and if connected dial *00 to obtain the IP
address.
B: The default IP address and mask of the PC port are 192.168.8.1 and
255.255.255.0 respectively.
Enable the DHCP service of the PC port.
Connect the computer with the PC port of the gateway through the IP address of
the PC port, and set the IP of the computer to dynamic IP or fixed IP as
192.168.8.xxx and the default gateway as 192.168.8.1.
Open the Internet Explorer and enter 192.168.8.1 or http://192.168.8.1 in the
address bar, then, the login page is popped up for password input. Enter the
login account (“admin” as default) in the User Name, and password (“admin” as
default) in the Password field.
3.1
Page Setting Menu
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canMapAlias = FALSE
callIdentifier = {
guid = 16 octets {
cb 40 a4 af 8e 9b 60 96 6b 5f a0 03 f2 ed 55 5b .@....`.k_....U[
}
}
gatekeeperIdentifier = "GnuGk"
willSupplyUUIEs = FALSE
}
The GSM VOIP Gateway supports the SMS forwarding through the SMS under SIP
protocol. After users send the short message to the GSM VOIP Gateway through
the SMS, the GSM VOIP Gateway will send the short message to the specified
VoIP number automatically.
As shown in the above figure, select SMS Mode > Forwarding and enter the VoIP
number that is used to receive the SMS information. The VoIP will automatically
forward all the SMS information from the GSM network to this VoIP number.
Similarly, the GSM VOIP Gateway will automatically forward all the SMS
information from the VoIP to the specified GSM mobile phone.
1. The GSM VOIP Gateway forwards the SMS from the GSM to a specified SIP
number.
3.9.3 SMS Forwarding
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[0] = dialedDigits "9998675588228822"
}
srcInfo = 2 elements {
[0] = dialedDigits "20001"
[1] = h323-ID "20001"
}
srcCallSignalAddress = ipAddress {
ip = 4 octets {
c0 a8 02 ed ....
}
port = 2049
}
bandWidth = 2048
callReferenceValue = 7502
conferenceID = 16 octets {
7f f3 78 77 49 3f 4c c1 9a dc 6a 84 12 d8 30 8f ..xwI?L...j...0.
}
activeMC = FALSE
answerCall = FALSE
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Click “OK” button and the gateway status page is displayed as default
WT-2201 Status Interface
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WT-2204 Status Interface
WT-2208 Status Interface
The GSM VOIP Gateway adopts the tree structure. The menu is on the left and
the setting parameters are on the right, as shown in the above figure.
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activeMC = FALSE
answerCall = FALSE
canMapAlias = FALSE
callIdentifier = {
guid = 16 octets {
cb 40 a4 af 8e 9b 60 96 6b 5f a0 03 f2 ed 55 5b .@....`.k_....U[
}
}
gatekeeperIdentifier = "GnuGk"
willSupplyUUIEs = FALSE
}
When the user enters an SMS dial prefix, such as 999, the above call request
signaling is changed to:
Send RAS Message: admissionRequest
admissionRequest {
requestSeqNum = 241
callType = pointToPoint NULL
endpointIdentifier = "3705_endp"
destinationInfo = 1 elements {
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callType = pointToPoint NULL
endpointIdentifier = "3705_endp"
destinationInfo = 1 elements {
[0] = dialedDigits "8675588228822"
}
srcInfo = 2 elements {
[0] = dialedDigits "20001"
[1] = h323-ID "20001"
}
srcCallSgnalAddress = ipAddress {
ip = 4 octets {
c0 a8 02 ed ....
}
port = 2049
}
bandWidth = 2048
callReferenceValue = 7502
conferenceID = 16 octets {
7f f3 78 77 49 3f 4c c1 9a dc 6a 84 12 d8 30 8f ..xwI?L...j...0.
}
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You can also access the setting page of the GSM VOIP Gateway through the IP
address 192.168.2.216 or 192.168.2.172 of the LAN port of the gateway. The
login method is the same as that of the PC port, but you must first obtain the IP
address of the LAN port.
The status page contains the following contents, as shown in the above figure
Each GSM VOIP Gateway has a factory set sequence number, such as
GOIP08030031, which is used for centralized setting, technical support, and
maintenance filing. The sequence number is printed on the bottom plate of the
gateway and is read-only.
It displays the current version of software used by the GSM VOIP Gateway. When
you want to upgrade the software, make sure the update version is newer than the
current version.
It displays the current hardware version of the gateway.
It displays the login status of the line. When the line has logged into the SIP server
or H.323 Gatekeeper, LOGIN is displayed, otherwise, LOGOUT is displayed.
It displays the use status of the line. When the line is in use, the status is ACTIVE,
when the line is idle, the status is IDLE.
3.2.2
Network Information
D. Line Register Status
3.2 Status
3.2.1 Telephone Information
C.
Hardware Version
A. Product Sequence Number
B. Software Version
E. Line Use Status
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It displays the current IP address of the LAN port, such as 192.168.2.172.
It displays the current IP address of the PC port.
It displays the PPPoE broadband connection condit ion. After the connection, the
IP address obtained is displayed on the LAN port.
It displays the current gateway address.
It displays the current DNS address.
Click “User Options” and the following figure shows.
User Options of the WT-2201
A. LAN Port
B. PC Port
C. PPPoE Dialing
D. Default Route
E. Domain Name Server (DNS)
3.3 User Options
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Examples of SMS Dialing:
In the following SMS dialing examples, the H.323 number of the GSM VOIP
Gateway is set as follows:
Mode 2:
When a short message of “8675588228822” is sent from the mobile phone
number (+86)13800000000 to the GSM VOIP Gateway, the GSM VOIP Gateway
will send the following call requests. When the GSM VOIP Gateway sends a call
request through the H.323 number of the GSM VOIP Gateway, the GSM VOIP
Gateway will automatically add the number of the short message sender to the
PSTN Forwarding Number in Call Forwarding (VoIP Incoming Call , Forwarding to
the PSTN Immediately);
In this mode, when the GSM VOIP Gateway receives the call from the H.323 GK,
the GSM VOIP Gateway will forward the call to the short message sending
equipment through the GSM network.
The call request signaling in this mode is as follows:
Send RAS Message: admissionRequest
admissionRequest {
requestSeqNum = 241
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Content-Length: 226
The GSM VOIP Gateway permits users to dial back through the SMS under the
H.323 protocol. After users send the called number to the GSM VOIP Gateway
through the SMS, the GSM VOIP Gateway will send a call request to the H.323 GK
automatically. Users who need this function shall choose the following parameters:
Select SMS Mode > Dial and the following page is displayed.
The GSM VOIP Gateway supports three types of outgoing call via SMS:
A: Mode 1 (The current version of the H.323 protocol does not support
this mode, but the later version will. )
In this mode, the GSM VOIP Gateway sets the number of the short message
sender as the calling number of the call and the called number as the short
message content;
B: Mode 2
In this mode, the GSM VOIP Gateway sets the H.323 number of the GSM VOIP
Gateway as the calling number of the call and the called number as the short
message content;
C: Mode 3 (The current version of the H.323 protocol does not support
this mode, but the later version will. )
In this mode, the GSM VOIP Gateway sets the H.323 number of the GSM VOIP
Gateway as the calling number of the call and the called number as the short
message content and the number of the short message sender, whose format is
short message content*the number of the short message sender.
D: SMS Dial Prefix
When the GSM VOIP Gateway initiates the SMS call, the GSM VOIP Gateway will
change the prefix number to the called number prefix.
3.9.2 SMS Dialing under the H.323 Protocol
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User Options of the WT-2204/ WT-2208
To select a language, refresh the page to enter the language page required. For
example, the current language is simplified Chinese. If you wish to display the
page in English, click “English” in the menu. After your terminal is restarted, all
the pages will be displayed in Engli sh.
You can also use other languages for setting, as shown in the following figure
Click “English” on the upper right corner of the setting page. Then, the setting
page will display all info in English. But the shortcut will not change the language
of the setting page when logged in next time.
3.3.1 Language
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This item displays the adjusted time according to the selected time zone. The
gateway receive time and date information from the server through the Network
Time Protocol and the time difference will l be automatically adjusted. For
example, the pacific standard time (PST) is GMT-8 and the pacific daylight time
(PDT) is GMT-7.
The time zone indicates the zone where the gateway is used. You need to enter
the correct time zone, so that the time of the caller ID and charging information
can be displayed correctly. The time server is the address of the server that
obtains the network time through the Internet. The default time server is
timekeeper.isi.edu.
This parameter is used to set the minimum interval of two DTMF signals. Packets
may be lost during the data transmission over the GSM. As a result, a DTMF may
be incorrectly identified as two or multiple identical DTMFs when detected by the
GSM VOIP Gateway. The problem of repeated code can be solved effectively
through the modification of the parameter.
This parameter value ranges from 60ms to 120ms and the default value is 80ms.
When the value of this parameter is increased properly, the repeated DTMF can
be avoided efficiently. However, the packet loss may also be caused.
If the service provider provides the automatic setting, you can select “Enable” to
start the automatic setting feature and enter the address of the server. If the
service provider does provide the automatic setting, you need to select “Disable”
to speed up the startup time of the GSM VOIP Gateway
3.3.2 Time Zone and Time Server
3.3.3 DTMF Minimum Detection Interval
3.3.4 Automatic Setting
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GSM VOIP Gateway sends a call request through the SIP number of the GSM VOIP
Gateway, the GSM VOIP Gateway will automatically add the number of the short
message sender to the PSTN Forwarding Number in Cal Forwarding (VoIP
Incoming Call , Forwarding to the PSTN Immediately);
In this mode, when the GSM VOIP Gateway receives the call from the SIP server,
the GSM VOIP Gateway will forward the call to the short message sending
equipment through the GSM network.
The SMS dial prefix is still valid in this mode;
The call request signaling in this mode is as follows:
SendingMessage to 192.168.2.1:5060:
INVITE
sip:8675588228822*8613800000[email protected]:5060;transport=udp
SIP/2.0
Via: SIP/2.0/UDP 192.168.2.237:5060;branch=z9hG4bK363969813
CSeq: 2 INVITE
Max-Forwards: 30
User-Agent:H
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REFER, REGISTER,
MESSAGE, INFO, SUBSCRIBE
Content-Type: application/sdp
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SendingMessage to 192.168.2.1:5060:
Via: SIP/2.0/UDP 192.168.2.237:5060;branch=z9hG4bK363969813
CSeq: 2 INVITE
Max-Forwards: 30
User-Agent: H
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REFER, REGISTER,
MESSAGE, INFO, SUBSCRIBE
Content-Type: application/sdp
Content-Length: 226
Mode 3:
When a short message of “8675588228822” is sent from the mobile phone
number (+86)13800000000 to the GSM VOIP Gateway, the GSM VOIP Gateway
wil l send the following call requests. When a short message of “8675588228822”
is sent from the mobile phone number (+86)13800000000 to the GSM VOIP
Gateway, the GSM VOIP Gateway wil l send the following call requests. When the
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It is a special server, which needs the support of the specific system.
Press *20# on the terminal to initiate the request to realize the remote
management of equipment. The remote control server is provided by the service
provider. The default port is 1920 and the terminal is identified by the SN. The
remote control password is identical with that of the server and is set as default.
In the following figure, the remote control server is set as 118.142.51.162. The
terminal user presses *20# and a long tone is heard, which indicates that the
instruction has been successfully sent. The remote administrator access
http://118.142.51.162:8086 and the model and SN of the gateway are displayed.
Click the gateway SN to set the remote gateway.
Note: It is a special server, which needs the support of the specific system. For
details, please contact the technical support Witura Corporation Sdn Bhd.
3.3.5 Setting of the Remote Control
3.3.6
GSM Group Mode
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Users can establish a GSM group containing multiple GSM VOIP Gateway. Under
this mode, the administrator only needs to provide a GSM number to the user to
call in the VoIP system.
Each GSM VOIP Gateway can operate in any of the following modes:
Prohibit: This mode is used when the GSM VOIP Gateway operates independently.
Serve as the server: When GSM VOIP Gateway operates in this mode, the
administrator only needs to provide the user with a GSM number of the GSM VOIP
Gateway as a unique access number to the GSM VOIP Gateway group. In one
GSM VOIP Gateway group, only one GSM VOIP Gateway can be used as the
server. When the GSM VOIP Gateway serves as the server, the GSM unconditional
call forwarding or busy call forwarding can be activated. The unconditional call
forwarding is used to forward all incoming calls to other clients of the group. The
busy call forwarding is used to forward incoming call s to other clients of the
group when the status of the SIM card of the server is ACTIVE.
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From:
<sip:[email protected]:5060>;user=phone;tag=65248630
CSeq: 2 INVITE
Max-Forwards: 30
User-Agent: H
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REFER, REGISTER,
MESSAGE, INFO, SUBSCRIBE
Content-Type: application/sdp
Content-Length: 226
Mode 2:
When a short message of “8675588228822” is sent from the mobile phone
number (+86)13800000000 to the GSM VOIP Gateway, the GSM VOIP Gateway
will send the following call requests. When the GSM VOIP Gateway sends a call
request through the SIP number of the GSM VOIP Gateway, the GSM VOIP
Gateway will automatically add the number of the short message sender to the
PSTN Forwarding Number in Call Forwarding (VoIP Incoming Call, Forwarding to
the PSTN Immediately);
In this mode, when the GSM VOIP Gateway receives the call from the SIP server,
the GSM VOIP Gateway will forward the call to the short message sending
equipment through the GSM network.
The SMS dial prefix is still valid in this mode;
The call request signaling in this mode is as follows:
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Sending Message to 192.168.2.1:5060:
INVITE sip:8675588228822@192.168.2.1:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 192.168.2.237:5060;branch=z9hG4bK363969813
From:
<sip:[email protected]:5060>;user=phone;tag=65248630
CSeq: 2 INVITE
Max-Forwards: 30
User-Agent: H
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REFER, REGISTER,
MESSAGE, INFO, SUBSCRIBE
Content-Type: application/sdp
Content-Length: 226
When the user enters an SMS dial prefix, such as 999, the above call request
signaling is changed to:
Sending Message to 192.168.2.1:5060:
SIP/2.0
Via: SIP/2.0/UDP 192.168.2.237:5060;branch=z9hG4bK363969813
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GSM VOIP Gateway Series
GSM VOIP Gateway
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Serve as the client: When GSM VOIP Gateway operates in this mode, it will
send it s real-time status to the server of the GSM VOIP Gateway group, so that
the GSM VOIP Gateway server can deploy the call forwarding.
Server address: It is the IP address of the GSM VOIP Gateway of the GSM VOIP
Gateway group server.
GSM number: It is the telephone number of the GSM SIM card used by the GSM
VOIP Gateway.
The caller number can be hidden, but this needs the support of the GSM operator.
The IMEI (International Mobile Equipment Identity) is an electric serial number
containing 15 digits.
3.3.6 Anonymity Of the GSM Caller Number
3.3.7
IMEI
3.3.8
SMS Send to Client
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The SMS server sends the request to the mobile phone via the GSM VOIP
Gateway, or the mobile phone sends the request to the SMS Server via GSM VOIP
Gateway.
SMS server address: This is for filling the IP of the SMS server. Please make
sure that server is installed with the GSM VOIP Gateway SMS management server
software independently developed by Witura Corporation Sdn Bhd (The software
can be obtained from our technical personnel).
SMS server port: It is the SMS port of the SMS server. The default value is
44444. It must be consistent with that of the server if modified on the server.
Authentication ID: It is the user ID. Make sure that the server has
corresponding ID.
Authentication password: It is for filling the user password.
Note: The SMS send cli ent of the WT-2204 and WT-2208 are in the call set
options, which needs the support of the GSM VOIP Gateway SMS management
server.
The GSM VOIP Gateway support the GSM/GPRS 900/1800 and 850/1900 bands.
3.3.9 GSM Band
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C: Mode 3
In this mode, the GSM VOIP Gateway sets the SIP number of the GSM VOIP
Gateway as the calling number of the call and the called number as the short
message content and the number of the short message sender, whose format is
short message content*the number of the short message sender.
D: SMS Dial Prefix
When the GSM VOIP Gateway initiates the SMS call, the GSM VOIP Gateway will
change the prefix number to the called number prefix.
Examples of SMS Dialing:
In the following SMS dialing examples, the account of the SIP of the GSM VOIP
Gateway is set as follows:
Mode 1:
When a short message of “8675588228822” is sent from the mobile phone
number (+86)13800000000 to the GSM VOIP Gateway, the GSM VOIP Gateway
will send the following call request signaling:
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