*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 kinds of voice coding, including G.711 (alaw and u-law) G.723.1 (5.3K/6.3K) G.726 (40K/32K/24K/16K), G.729A/B, and iLBC;
*Support incoming call on show, restricting, and holding, disconnection, call transfer, call divert, DTMF, dialing project, etc;
*Support conference call;
*Support passing through and T38 fax, voice restrain and jerquers, CNG, echo restrains (G.168), AGC, and DIGEST using MD5 and MD5-sess;
*Support layer 2(802.1Q VLAN, 802.1p) and layer 3 (QoS, DiffServ, ToS);
*Support NAT auto- penetrating, no need to modify the setting of the NAT;
* Support configuration files by inside IVR equipment, Web browser, HTTP Center Server;
*Support upgrading encrypts configuration files by HTTP;
*Microminiaturize and legerity design (size as a wallet), a voice gateway that convenient for schlepping | | | |
(GM-901) 
Product Feature