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Voip Gateway with 1xWAN,1xLAN,1xFXS and PSTN

Features
• 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/32K/24K/16K), G.728, G.729A/B, iLBC;
• The powerful DSP digital audio processor to keeping a wonderful audio-quality;
• Inside DNS, route, NAT, DMZ, the gateway and DHCP (the client end and the server end);
• Advanced shaking control, and the technology of hiding the lost massage
• Support incoming call on show, restricting, and holding, disconnection, call transfer, call divert, dialing project, etc. • Support conference call
• Supports VAD, CNG, AGC, the echo eliminates (G.168) and the static sound suppression;
• Support layer 2 (802.1Q VLAN, 802.1p) and layer 3 (QoS,, ToS DiffServ, MPLS)
• Powerful long-distance TFTP or HTTP manages;
• To dispose through the browser or the voice hint;
• NAT automatic penetration;
• Support passing through and T.38 fax;
• Good for the environment, according to the international electromagnetism radicalizations standard;
• Select high quality material, original electro circuit design, and no electric current noise, work steadily;
• Porcelain and legerity design let you feel the full-bodied appetency of the product besides expediency schlepping.