I'm trying to learn to develop SIP client for Windows Phone 8.1 (following this example).
The example mentions to call:
Windows.Phone.Networking.Voip.VoipCallCoordinator.RequestNewOutgoingCall()
to perform outgoing call. However, from the documentation, RequestNewOutgoingCall is to "Notifies the system of a new outgoing call." Not to connect to the actual SIP server.
Anyone knows how to connect to the desired SIP server? Thanks.
Microsoft does not provide ready solutions for SIP call. You must use one of the existing third-party components. Existing SIP frameworks have rather poor version for Widows Phone:
PJSIP - library does not use background agent that makes it impossible to use it in an existing application.
Doubango - code rather poorly supported, so the latest versions (during last 6 months) contain errors, which not allow using this framework. Not implemented some of popular components - for example: Acoustic Echo Canceller.
We use custom Doubango library.