How to configure openvox gsm gateway in Asterisk

Openvox GSM Gateway SIP trunking with Asterisk | Vicidial

Topic:How to configure openvox gsm gateway in Asterisk

Models : Openvox gsm gateway model SWG 3008/SWG 3016 SWG 3032

openvox gsm gateway asterisk vicidial

Openvox GSM Gateway asterisk vicidial

  Abount OpenVox

OpenVox Communication is a global leading provider of the VoIP Gateways, IPPBX and open source Asterisk Telephony Cards with excellent quality and experience. In 2013, OpenVox USA Branch was set up in California, the top economic and financial strength state in the United States, and marked an important step in the global expansion. OpenVox has earned a good reputation over 100 countries worldwide with excellent product quality, professional technical support and efficient logistic services

OpenVox SWG-3016/32 series wireless gateways which can compatible with a series of modules(2G/ 3G/4G) , enabling interconnection between GSM / WCDMA /LTE network and VoIP network safely and effi-ciently. They can bring you excellent HD voice service with multiple codecs, including G.711U, G.711A,GSM, G.722, G.726, G.729, and also flexible SMS service with multiple SMS API. The SWG-3016/32 se-ries gateways is perfect compatible with Asterisk, 3CX, FreePBX, FreeSWITCH SIP server and VOS VoIP system platform.

  Major Features

● Support SIP/IAX2 Protocol

● Work as both SIP Client and Server mode


Asterisk is a free and No:1 open source framework for building communications applications and is sponsored by Sangoma.


VICIDIAL is a software suite that is designed to interact with the Asterisk Open-Source PBX Phone system to act as a complete inbound/outbound contact center suite with inbound email support as well.

  Video Tutorial click this Link how to configure openvox

  Steps Openvox Sip Trunk with asterisk

1. Gateway Network Configuration

2. VOIP SIP endpoints configuration

3. SIM Groups configuration

4. Call routing Configuration - inbound/outbound

5. asterisk SIP settings and Dialplan.

  Step 1: Openvox GSM Gateway Network Settings

The Default Factory set IP address of openvox gsm gateway is

The default Login Credentials are admin/admin

For Best Practice change the Default ip of the GSM Gateway to your LAN IP address range,

To change the IP address connect the gateway to your LAN or connect one to one to your PC/LAPTOP with Same Subnet IP of gateway ie: as shown below.

openvox gsm gateway network settings

Access the GSM Gateway portal by browsing with any of your favorite browsers, t
Login with the default credentials are admin/admin.

Now under Network tab/menu , change the IP Address by setting the TYPE to Static as shown below and set your LAN IP address to this Gateway, i have used192.168.1.252 as static ip to my device.
openvox gsm gateway network IP

save the configuration, followed to that the device is restart,
Now access your GSM Gateway with the new IP Address

  Step 2: Opevox VOIP SIP Endpoint Settings.

Next you need to Create a SIP Peer in GSM Gateway, which will be registered as SIP trunk in your asterisk /SIP server to Make and receive calls

Login to your GSM Gateway WebPortal.
Navigate to VOIP > VOIP Endpoints from the TOP Menu
Under VOIP Endpoints Select Add New SIP Endpoint


Now in the New SIP Endpoint section, fill the details as shown below
Name         : Provide a Name Better use number eg:6003
username  : enter a username for SIP Peer eg: 6003
Password   : password to register 6003 eg:1234
Registration: Server  (So gateway register as trunk in Asterisk/sip )
Hostname   : Dynamic
transport     : UDP
NAT             : No
Save and Apply config.

openvox gsm gateway sip endpoint

  Step 3: SIM Group Configuration.

Next we need to Group all the SIM Ports to a single group, so that we can dial in all SIM Ports in RoundRobin fashion.

Navigate to Routing > Groups
Click Create New Group  and Add the below details.

GroupName  :  SIMGROUP
Type  :  Module
Policy : RoundRobin
Members: Select ALL  or Select the SIM's to you wan in group
Save and Apply.

open vox gsm gateway sim groups

  Step 4: Call Routing Rules in OPENVOX

Next we need to Create two call routing rules 
1. Outbound Rules
2. Inbound rules.
Outbound Rules used to dialout via SIM Ports for the calls initiated via Asteris or any SIP servers.
Inbound Rules used to Route the Incoming calls landing on GSM Gateway to a destination like Asterisk server Extensions , IVR etc.

Outbound Rules: 
Navigate to Routing > Call routing Rules > New Call Routing Rule

Enter the Below details:
Routing Name  :  OUTBOUND
Call Comes From: 6003 (SIP Endpoint created in STEP 2)
Send Call Through : SIMGROUP (Group created in STEP 3)

openvox gsm gateway call routing rules outbound

Inbound Rules :
Navigate to Routing > Call routing Rules > New Call Routing Rule

Enter the Below details:
Routing Name  :  INBOUND
Call Comes FromSIMGROUP (Group created in STEP 3)
Send Call Through : 6003 (SIP Endpoint created in STEP 2)

openvox gsm gateway call routing inbound

  Step 5: Asterisk SIP Trunk and Dialplan Settings

Now we are all set in Openvox GSM gateway configuration, now we need to create SIP trunk /carrier and dialplan in asterisk to dialout and dial in.

In Your asterisk or vicidial use the below SIP turnk configuration 
either enter in sip.conf or admin> carriers in gui
register => 6003:1234@
host= ; this is my gsm ip
context=trunkinbound  ; set this to your incoming context

For vicidial outbound dialplan

exten => _9X.,1,AGI(agi://
exten => _9X.,n,Dial(SIP/6003/${ETEN:1},,Tto)
exten => _9X.,n,Hangup()

For Asterisk
exten => _9X.,1,Dial(SIP/6003/${ETEN:1},,Tto)
exten => _9X.,n,Hangup()

For inbound
In Vicidial Create a DID as 6003
or use below dialplan in asterisk incoming context.

exten => 6003,1,Answer()
exten => 6003,n,Dial(SIP/1001)
exten => 6003,n,Hangup()

  Checking the SIP trunk status:  

in asterisk cli type below command to check sip trunk status.
sip show peers 
sip show registry 

For Support Reach me at 

SKYPE: striker24x7

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  • gopi baskar
    gopi baskar April 4, 2022 at 9:19 AM

    How to configure openvox gsm gateway in asterisk vicidial

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