Learn details about SIP protocol in this Part 1 in-depth article on VoIP

From the article:

VoIP in-depth: An introduction to the SIP protocol, Part 1

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 down into the way the Session Initiation Protocol (SIP) works, and it should serve as a good starting point for really learning SIP. If you haven’t already done so, you are encouraged to read the previous article, although it’s not a prerequisite. This introduction also covers the latest SIP extensions and changes, so it gives a complete view of the protocol’s current state, rather than just the basic, underlying RFC.

~ by WPA Staff on February 2, 2010.

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