VoIP Telephone

Product Introduction:

VoIP Telephone is provided by Yealink Network Technology Co Ltd,a major Interphones supplier in Broadcast & Telecom wholesale industry in China.You can check out the specification of VoIP Telephone below or get any optional result clicking into the following keywords and you can check the authentications and testimonials of VoIP Telephone .

Description:
Supporting SIP 2.0 and 1.0 protocol Supporting NAT transverse: STUN mode Supporting static/dynamic WAN-IP-Addressing and PPPOE Supporting in-band DTMF and out-of band RFC2833 DTMF Supporting Proxy mode and peer-to-peer SIP link mode Codec: G.711 A/u, G.723.1High/low, G.726 and G.729A/B Supports: VAD, CNG, AEC, LEC, packet loss compensation and adaptive jitter buffer Multiple call functions: call forward, three-way conference, call hold, caller ID display and call waiting Adjustable stand, LCD with blue backlight and big characters give you better LCD review Phone functions: volume adjustment, speed dial, phone book, flash and speaker phone Can be configured through web browser, console/telnet or keypad Firmware can be upgraded through HTTP, FTP or TFTP