Grandstream GXP-2000 SIP VoIP Phone Dual RJ45 VoIP

Modelo: GXP-2000 The Grandstream GXP-2000 IP Phone is an award-winning next generation IP network telephone based on industry open standards. Built upon innovative technology, Grandstream IP Phone features market leading superb sound quality and rich functionalities at ultra-affordable price. Features Include: Support SARP/RARP, ICMP, DNS, DHCP, NTP, TFTP protocols Support NAT traversal via STUN & symmetric RTP Support SIP SIMPLE standard for Instant Messaging and Presence Interoperable with various 3rd party SIP end user device, Proxy/Registrar/Server, and gateway products Advanced Digital Signal Processing (DSP) to ensure superb hi-fidelity audio quality Advanced and patent pending adaptive jitter buffer control, packet delay & loss concealment technology Support popular vocoders including G.723.1 (5.3K/6.3K), G.729A/B, G.711 (a-law and u-law), G.726, G.728, and wide-band G.722 (Model 102D). Dynamic negotiation of codec and voice payload length Suppor