Product Characteristics:
•Supports SIP2.0 (RFC3261), TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, DHCP, NTP, STUN, and TFTP etc;     
•Use the DSP CNOS chip to keep a wonderful audio-quality, Jitter control and packet loss concealment technology;  
•Supports kinds of voice codes, including G.711 (a-law and u-law) G.723.1 (5.3K/6.3K) G.726 (40K/32K/24K/16K), G.729A/B, and iLBC;  
•Supports incoming call on show, restricting, and holding, disconnection, call transfer, call divert, DTMF, dialing plan, etc;  
•Supports conference call;  
•Supports NAT auto- penetrating, no need to modify the setting of the NAT;  
•Supports passing through and T38 fax, voice restrain and jerquers, CNG, echo restrains (G.168), AGC;  
•Supports remote upgrade and upgrade configuration function;  
•Supports layer 2(802.1Q VLAN, 802.1p) and layer 3 (QoS, DiffServ, ToS);  
•Supports SIP encrypts mode, avoid force-out;  
•Supports upgrading encrypts configuration files by HTTP;  
•Supports configuration files by inside IVR equipment, Web browser, HTTP Center Server;  
•Supports the volume adjustment of gateway;

NEW IN THE BOX
One Year Warranty