- Support dual protocols: ITU-H.323 V4 and IETF SIP V2
- Provide 2 RJ-11 port for POTS phone or a PBX's trunk line
- Provide 2 RJ-45 Ethernet Ports
- Support G.711 A/μ law, G.729A/B, G.723.1 Codecs
- Support QoS, NAT transversal and router function
- Support VAD, CNG, EC
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