*Support SIP2.0 (RFC3261), TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, NTP, STUN, and TFTP etc; *Use the DSP CNOS chip to keep a wonderful audio-quality, advanced shaking control, and the technology of hiding the lost message; *Support k... - Update: 2007-09-10

*Standard SIP 2.0 terminal product, powerful applicability, and best for global popularizing; *Support SIP 2.0, TCP/UDP/IP, RTP/RTCP, ICMP, ARP/RARP, NTP, PPPoE, TFTP, HTTP, etc; *Support G.711 (a-law and u-law), G.723.1 (5.3K/6.3K), G.723 (40K/3... - Update: 2007-09-10