The recent news is that I am back from a long stay in India of about five months. I decided to start a new blog to put together my findings and readings on P2P-SIP and VoIP in general. If you would like to be added a team member for this blogger please drop me an email and I will add you!
I will start with references to my work. You can see a brief overview of our P2P-SIP design as a short paper, a more detailed architecture document or an extended overview paper. I also have an implementation running on Linux. The implementation report describes the details of the implementation so that others can also implement similar system.
There are many other papers on the p2p-sip website, including the original SoSIMPLE technical report, and internet drafts by Alan Johnston, Nimcat Networks and College of William and Mary.