Support SIP(RFC 3261)
Support Voice Codec: G.711 U, G
Support G.168 echo cancellation standard
Support Jitter Buffer, VAD, CNG, SIP, Domain name register, point-to-point Call
Support RTP and RTCP
Support DTMF Inbound/Outbound transmission; SIP info, In Audio, RFC2833
Support Many countries' standard ring
NAT transversal: Support STUN
Support SIP domain, SIP Authentication ,SRV, Domain Name parse
Support SIP application, including SIP Call forward/transfer/holding/waiting
Network Features
Support PPPoE for xDSL, and support auto redial when disconnect.
Support DHCP Client
Use advanced DSP tech to insure high quality voice.
Use advanced jitter buffer tech to prevent the delaying and losing for info package.
Support three modes to configure LAN port IP, they are: static, DHCP, and PPPoE.
Support Second Layer QoS(802.1p)
Advanced Functions
Support anti-pole signal detecting
Support configure various audio frequencies: dialing tone, busy tone manually
Support many modes Call waiting, call transfer, 3-way call, call forward.
Support the configuration of the FXS with different impedances, fits for different countries standard.
Support various Caller ID Scheme, fits for various countries standard
Support ID Display
Support point-to-point call.
Support the number end mode
Support Silence Suppression, Detection
Support background noise analog
Support Echo Suppression and AGC(Automatic Gain Control
