We currently have PJSIP compiled in xcode but we need help integrating to your application. Integration would include
1. Register and Unregister SIP user (Digest authentication)
2. Outgoing and Incoming calls(Push notification)
3. Call hold
4. Call Transfer
5. Calls should go though codec G729.
You do not need to make GUI the only thing we need is to integrate this features to our current app.
Specified OS:
IOS 6 and up
Development of graphic design and UI elements:
I will provide all assets.