SIP and Java, where to start and with what?

Posted by Senne on Stack Overflow See other posts from Stack Overflow or by Senne
Published on 2010-04-16T10:03:34Z Indexed on 2010/04/23 5:33 UTC
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sip

I want to implement the SIP protocol in java and would want to be able to create different clients (5 or more) and make them connect to a proxy server. This is all for testing purposes so I would like to be able to see well what's happening on a rather low level.
The clients should first be able to communicate trough text and later on maybe also by audio. (If I ever get that far)

I already read a bit about the JAIN libraries and what I understood from that is that they are not really well suited for the server side? I also didn't really find any proxy server examples, tutorials, using JAIN.
I also found this SIP Servlet Tutorial book, I used HTTP servlets in the past but should I prefer servlets or JAIN or ...?

I'm quite new to SIP so I don't really know where to start or what to choose in combination with java.

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