Daniel-Constantin Mierla writes:
The problem right now is interpreting the content - presence information is content. If the server does not understand the Event you subscribe to, bye bye...
i agree with that. in one sip ua is was not possible to configure voicemail uri. it assumed that it is the same as ua's own uri and that sip proxy is "smart" enough route the subscribe to user's voicemail server based on "message-summary" in Event header. i argued that requests should be routed by proxy on r-uri only. they accepted that and made it possible to configure voicemail uri.
-- juha