4channels GSM VoIP Terminal SC-495 with 4SIM

For GSM - VoIP connection, Quad band 900/1800/850/ 1900MHz; SIP protocol, Asterisk, VoIPBuster compatible, support NAT & Auto Hunting; CDMA VoIP Terminal: SC-495cdma

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

GSM Frequency:
Quad band 900/1800/1900/850MHz
4channels GSM VoIP Terminal SC-495 with 4SIM