SMS sending & receiving; dual band 900/1800MHz, tri band 900/1800/1900MHz, multi band 850/1800/1900MHz; SIP, Asterisk, VoIPBuster compatible

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/�BCMP/ARP/RARP/SNTP DHCP/DNS Client�BIEEE802.1P/Q�BToS/DiffServ�BNAT Traversal�BSTUN�BuPnP�BIP Assignment�BStatic IP�BDHCP�BPPPoE
Codec: G.711 u-Law�BG.711 a-Law�BG.723.1 (5.3k) G.723.1 (6.3k)�BG.729A�BG.729A/B�BVoice Quality VAD�BCNG�BAEC�BLEC�BPacket loss
GSM Frequency: Dual band 900/1800MHz,
Tri band 900/1800/1900MHz
Quad band 900/1800/1900/850MHz