Hello, I need to make a SIP call and play a wav file over the RTP stream from a twisted server. This is a sort of visual voicemail application. Has anyone set this up using twisted before? I saw the SIP protocol support in twisted, but I'm not sure how complete it is. Do you think it would be difficult to make this solution a reality? I heard of the Shtoom project which did this using Twisted, but it appears dead I can't find the source code for it.