4- and 8-channel GSM-board (PCI or PCI-Express bus) for OS Linux and Asterisk IP-PBXprovides communication between your application under
Application:
— GSM VoIP gateway
— SMS-gateway
Technical details:
— 4/8 GSM-modules (900/1800/1900 Mhz)
— 1 SIM-card per channel
— DTMF receiver
— Digital sound processing (with possibility of hardware compression: G.729, G.726, G.723)
— Light-emitting diode indication of channels work
Bundling:
— GSM-card for 4/8-channels
— 4/8 vertical antennas