Basic Features:
- IEEE 802.3 10 Base T
- Support G.711A/U, G.723.1, G.729/A/B/AB and GSM610 voice codec
- SIP, H.323 V4 protocol
- SIP RFC3261
- TCP/IP: Internet protocol
- Support RTP RTCP protocol
- Support VAD/CNG
- One WAN, one LAN, support router
- Support DHCP, PPPOE DNS TELNET
- Sup