Awesome SIP Tutorial

I have been spending a bit of my time reading up on VOIP protocols. While searching the ‘net for good SIP/RTP/RTCP documentation, I came across an awesome SIP tutorial. This tutorial is extremely well written, and definitely one of the best I have found so far!


Koushik  on December 8th, 2008

Hello Matty,
I wrote the SIP tutorial you have mentioned here. It feels great to know that people like you found it interesting and useful. Thanks a lot for spreading the word.

koushik  on July 8th, 2009

Hello Matty,
I moved my site to Please visit/bookmark/link to the new site.

john rutledge  on August 6th, 2009


gr8krupa  on May 15th, 2010

Its really awesome and self explanatory. If you have any document on MGCP and H323 as this one, please send it to me.

abc  on September 11th, 2010

Nice tutorial. Read it if you are a beginner like me to understand SIP.

abc  on September 11th, 2010

Better mode article on SIP is here

Smitha.rm  on August 27th, 2011

Yes this tutorial is extremely good one for the beginners to understand about SIP,RTP/RTCP. It made many of my doubts to get clear..

I am extremely thankful to the author

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