3G 4 Port GSM-VoIP Gateway

- 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