VoIP Gateway IAD ATA IP phone adaptor-TVG311 1. Features:Compatible to IEEE 802.3 10BASE ... Support HTTP, HTTPS,FTP upgrade Support call forward (Always, busy, no answer), call waiting and per call-waiting blocking Voip speed dial,VoIP digital map ... Support billing Configurable Device Mode(Router or Bridge) Advance Routing function Static Address Assignment according hostname or MAC Port forwarding and ...