8 Ports VoIP GSM Gateway / VoIP UMTS Gateway /4G LTE Gateway MV-378 is a 8 Ports VoIP GSM/UMTS/LTE Gateway for call termination (VoIP to GSM/UMTS/LTE ) and origination (GSM/UMTS/LTE to VoIP). Support Asterisk,Trixbox,SIP Proxy Server Major Function VoIP(SIP),UMTS/LTE conversion. for all world 50 sets of LAN --> MOBILE routes setting,50 sets of MOBILE --> LAN routes setting. -Support one stage diaing -Support assigned mode and free mode-two stage dialing Voice response for setting and status(dial in from mobile). For call termination (VoIP to GSM/UMTS/LTE) and origination (GSM/UMTS/LTE to VoIP). Standard SIP(RFC2543,RFC3261) protocol,Communicates with other gateway or PC Receive SMS and Send SMS Allows your program Send/receive SMS with AT Command Call Back feature All functions can be set on web. 1 year warranty Specification Protocols:SIP (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.729A,G.729A/B Voice Quality,VAD,CNG,AEC,LEC,Packet loss *must insert 4G Sim