I am doing an iOS app with SIP and VoIP concept. I don't know even basics. So I referred following documents.
1.http://trac.pjsip.org/repos/wiki/Getting-Started/iPhone#Features
2.http://www.pjsip.org/download.htm
3.http://www.xianwenchen.com/blog/2014/06/09/how-to-make-an-ios-voip-app-with-pjsip-part-1/
4.iOS: Open Source VoIP/SIP Objective-C Code
5.How to implement VoIP + SIP in iPhone?
6.https://code.google.com/p/siphon/
7.http://www.linphone.org/technical-corner/liblinphone/overview
8.https://code.google.com/p/idoubs/
Finally I got exact app what I expected is,,
9.http://www.portsip.com/downloads.html
I downloaded iOS project and run in simulator, exactly connecting with our asterisk server through SIP. I can make call, incoming also. But that is trail version. I unable to modify that code.
That connection link I unable to modify. Can any one guide me how to connect with server, when "REGISTER" button is click? Before pressing "REGISTER" button, I got Username, password, Server IP address in UITextfield.
Can anybody help me, how to register with SIP like in http://www.portsip.com/downloads.html ???