I've been clicking around the Flash-enabled VoIP eLearning Tutorial. Authoritative, vividly illustrated, and totally cool. You click, and you see illustrated guides ...

The iptel.org 180+ page SIP tutorial is outstanding. Another overview that is a bit more market-oriented and nearly as long. White paper on the SIP value proposition over telephony, SIP and the new ...

I purchased new Unifi kit router/switch/wifi etc and wanted to configure my Orcon NF18ACV to only enable VOIP/ATA only for landline phones. Thought I would share my steps 1. Go to Advanced / WAN ...