Truly cost-saving with Billions Bi PAC 7404VGP series of router! This series of Vo IP (802.11g) ADSL2+ Firewall Router packages powerful functionalities into one-single-box to provide home & SOHO users to enjoy economical Vo IP calls while having the mobility & high-speed & safe Internet access. The world-leading Gateway feature " Least Cost Routing" enables users to choose the most economical rate of Vo IP calls provided by varying Internet Telephony Service Providers (ITSP). The device integrated with two FXS ports offers dual lines for Vo IP calls making. The additional FXO port enables you to make calls through PSTN Fixed-line while sharing a high-speed Internet access even faster. The Internet access is safely protected from hackers attack by unparalleled Firewall security features such as SPI, Dos attack prevention, & URL Content Filtering. The Quality of Service feature ensures a smooth net connection for inbound & outbound data with minimum traffic congestion. Making Vo IP calls with toll-quality is very simple, just connect the router with your existing telephone sets. The Bi PAC 7404VGP complies with the most popular Vo IP industrial standard, SIP protocol, to ensure the interoperability with SIP devices & major Vo IP Gateways. The Gateway feature " Least Cost Routing" offers the choice of the most economical rate provided by ITSP. One RJ-11 FXO port is integrated to get inbound & outbound calls transmitted through PSTN Fixed-line so that users can even receive phone calls from PSTN while enjoying Vo IP service at the same time. In addition, outgoing calls will be automatically redirected to PSTN when the Internet or Vo IP service is not available. The router also supports wider range of telephony features, such as call waiting, silence suppression, line echo cancellation, caller ID & so on. The router complies with ADSL worldwide standards. It supports downstream rate up to 12/24 Mbps with ADSL2/2+, 8 Mbps with ADSL & upstream rate up to 1 Mbp