Quad Band 1 channel GSM Voip gateway Goip Voip phone
Quad Band 1 channel GSM Voip gateway Goip Voip phone Open Standard VoIP Protocols (ITU H.323 V4 and IETF SIP V2) Single Server Registrations SIP peer-to-peer mode SIP proxy mode GSM module Advanced jitter buffer VLAN and QoS support NAT Transversal