Product Description

VPN Main features: It can register to two SIP server synchronously Support point-to-point call. Set up fixed call method. Support standards of the ring in different countries and regions. Support two models: Bridge and Router support basic NAT and NAPT. Support DHCP client for WAN port. Support the DTMF Inbound/Outbound transmission. Support the voice communication through RTP and RTCP. Use the advanced technology DSP to ensure high quality voice. Provide firewall control for small size of LAN port. Provide the communication PRI available for the small LAN of LAN port. Protocol: Support SIP Codec G**1a;G**1u;G**9;G**6;GSM;ILBC Configuration, management and maintenance： Support to operate and configure the gateway by keyboard and Http mode, and support the filtration restriction on user IP address. Support to update the software and configuration via HTTP, FTP, TFTP. Support 3 methods to configure the WAN IP: Static (static configuration for LAN), DHCP (Dynamic query through LAN) and PPPoE (Dynamic query through ADSL. Our IAD serial gateway supports SIP protocol to enable users to make local, long distance and international telephone/FAX calls by using existing telephony device.