Sangoma card W400 4 modules GSM

• 4 GSM ports/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

The Sangoma W400-004E is a four port GSM board which can support 4 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.

4 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
Automatic codec negotiation
Built-in Asterisk Manager Interface support
Compatible with Linux version 2.6 and up
Works with Asterisk DAHDI driver