pap2t voip Archive
22 Mar 2016
VoIP Gateways – issues of modern telephony

Cisco / Linksys series – PAP2T, SPA2102, PAP112, SPA122 are propably most widely used around the world for VoIP communication. Most common issues related to VoIP Gateways are unreachable phone in incoming calls, DTMF not passing through or not working properly with alarm/elevator systems. Problem 1: VoIP gateway not reachable on incoming call. Mostly this