• 9 years ago
More on Amazon.com : http://www.amazon.com/gp/product/B000IDTLXG?tag=thefatkidin06-20

Grandstream GXP2000 IP Phone

Support SARPRARP 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 ProxyRegistrarServer and gateway products
Advanced Digital Signal Processing DSP to ensure superb hi-fidelity audio quality

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