3G 4 Port GSM-VoIP Gateway

Description

– Gateway with 8 VoIP Channels, 4 3G SIMs, 2 FXO, and 2 GXS Ports- Fits into existing data infrastructure and allows low-cost long distance calling through SIP trunking- Multiple SIP proxy registrations- Restrict unwanted calls with list of denied numbers- Direct number dialing on cellular networks with automatic number translation- Caller ID presentation/restriction- Fax over IP (T.38 and PSTN Pass-Through)- Emergency number dialing- SNMP monitoring- Port forwarding and DMZ- Web-based configuration and management- Up to 9 SIP accounts- Voice Codecs: (A/µ Law), G.723.1, G.729AB, GSM-FR and iLBC