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

In our last VoIP installment, we looked at the main reasons why SIP has become a widely adopted protocol, but we left details of the protocol’s inner workings fairly vague. This article will drill ...

SIP vs VoIP: what's the difference? If you’re setting up a new VoIP business phone system, this question will sound familiar. You've likely run into the acronyms SIP, or Session Initiation Protocol ...

Even many IT professionals haven't heard of the Session Initiation Protocol (SIP), so it's almost certain your users haven't. However, unless you're using an entirely proprietary Voice-over-IP (VoIP) ...

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 ...

VoIP: Voice over Internet Protocol. Meet the acronym for communication technology which helps your company communicate faster. When you purchase through links on our site, we may earn an affiliate ...

We are becoming less and less dependent on mobile networks. You can get a data signal almost everywhere that you can get a mobile signal and most of us are around WiFi most of the time anyway.

In Part 1 of our SIP primer, I covered the SIP foundation layers starting from the message structure and ending with the SIP transactions. We saw how phone registrations and proxies could work using ...