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Network feature:(1) Supports SIP 2.0 and 1.0 protocol(2) Supports NAT transverse: STUN mode(3) Supports static/dynamic WAN-IP-Addressing and PPPOE(4) Supports in-band DTMF and out- band RFC2833 DTMF(5) Supports proxy mode and peer-to-peer SIP link mode High voice quality(1) Codec: G.711 A/G.723.1 high/low, G.726 and G.729A/B(2) Supports: VAD (voice activity detection), CNG ( comfortable noise generator), LEC (line echo canceller), packet loss compensation and adaptive jitter buffer.Easy to use:(1) 2 lines x 16 characters big LCD with blue backlight(2) Can be configured through web browser, console/telnet or keypad(3) Can upgrade firmware through HTTP, FTP or TFTP(4) Call function: call hold, call waiting, call forward, caller ID and 3-way conference.(5) Phone function: volume adjustment, speed dial, phone book, flash and speaker phone(6) 2 RJ45 LAN port: one for internet and one for PC
IP Phone
