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Sangoma W400 Single Module GSM Card


Sangoma W400-003E Tri module GSM card

Sangoma W400-002E Dual Module GSM card

Quick Overview

  • 2 GSM port/modules

  • Quad-band EGSM 850/900/1800/1900 Mhz for worldwide GSM compatibility and deployments

  • Built-in Asterisk Manager Interface support

  • GSM protocol stack for voice and SMS

  • Hardware echo cancellation and noise suppression

See more product details






The Sangoma W400-002E is a Dual ports GSM board which can support 2 SIM cards. This allows the Quad-band EGSM W400-004E to add GSM voice connectivity and SMS capabilities to IP-PBX applications. The W400 also offers the possibility to send SMS messages over the GSM network, enhancing the IP-PBX to act as an SMS gateway. For added flexibility, SMS messages can be sent while a voice conversation is active on the GSM port.


  Technical Specification


2 GSM ports/modules, GSM protocol stack for voice and SMS
SMS in text and PDU mode with decoding of Mobile Service Center (MSC)
GSM supplementary services (CLIP, CLIR, USSD)
Hardware DTMF detection, 1SIM card per GSM channel
Automatic codec negotiation
Built-in Asterisk Manager Interface support
Compatible with Linux version 2.6 and up
Works with Asterisk DAHDI driver

Slot Type


Hardware Echo cancellation


GSM Ports
GSM Connectivty

Quad-band EGSM 850/900/1800/1900 Mhz

Compatibility Modules  Modular capacity (Expandables)
Dimension 137mm x 111.15mm


Additional Information

key note Sangoma W400-002E GSM Board with 2 GSM Modules
Manufacturer Sangoma
  1. Good Connectivity review by Ranganathan Iyer on 8/23/2021
    Overall Rating

    Quality is good. All the specifications mentioned are working really well.

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