how to start with a voip/public announcement project?

Posted by Metiu on Stack Overflow See other posts from Stack Overflow or by Metiu
Published on 2010-05-21T13:47:37Z Indexed on 2010/05/21 13:50 UTC
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voip

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sip

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xmpp

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PA

The main requirements are:

open source solution on Linux
support P2P VoIP calls
support presence
support multicast VoIP announcements (and maybe some way of setting up such a "conference")
preferably serverless (maybe the network can get split and I'd need to keep the functionality for all clients that still see each other)

I tried looking at telepathy, in particular telepathy-salut, but it seems to be quite a new technology, so it lacks clear/good documentation and/or working examples.

I'm also evaluating SIP (e.g. SofiaSIP), but it's working only if connected to a server.

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