4channels GSM VoIP Terminal SC-495 with 4SIM 1WAN

Major Function:
4 x VoIP (SIP)- GSM conversion
50 sets of LAN -> MOBILE routes setting;
50 sets of MOBILE -> LAN routes setting
Voice response for setting & status (dial in from mobile)
For call termination (VoIP to GSM) and origination (GSM to VoIP)
Standard SIP (RFC2543, RFC3261) protocol,communicates with other gateway or PC
To be set on web
Specification:
SIP protocol: (RFC2543, RFC3261)
TCP/IP: IP/TCP/UDP/RTP/RTCP/?CMP/ARP/RARP/SNTP DHCP/DNS Client?IEEE802.1P/Q?ToS/DiffServ?NAT Traversal?STUN?uPnP?IP Assignment?Static IP?DHCP?PPPoE
Codec: G.711 u-Law?G.711 a-Law?G.723.1 (5.3k) G.723.1 (6.3k)?G.729A?G.729A/B?Voice Quality VAD?CNG?AEC?LEC?Packet loss

4channels GSM VoIP Terminal SC-495 with 4SIM 1WAN