Exception when trying to call(SIP)

Question

I'm developping a SIP application, and when i want to call someone(with its identifier configured in the server) i have a NullPointerException => "Error when trying to close manager." Here is the code:

public void initiateCall() {

        updateStatus(sipAddress);

        try {
            SipAudioCall.Listener listener = new SipAudioCall.Listener() {

                @Override
                public void onCallEstablished(SipAudioCall call) {
                    call.startAudio();
                    call.setSpeakerMode(true);
                    call.toggleMute();
                    updateStatus(call);
                }

                @Override
                public void onCallEnded(SipAudioCall call) {
                    updateStatus("Ready.");
                }
            };

            call = manager.makeAudioCall(me.getUriString(), sipAddress, listener, 30);

        }
        catch (Exception e) {
            Log.i("WalkieTalkieActivity/InitiateCall", "Error when trying to close manager.", e);
            if (me != null) {
                try {
                    manager.close(me.getUriString());
                } catch (Exception ee) {
                    Log.i("WalkieTalkieActivity/InitiateCall",
                            "Error when trying to close manager.", ee);
                    ee.printStackTrace();
                }
            }
            if (call != null) {
                call.close();
            }
        }
    }

Thank you for your help.

Answer 1

The VOIP/SIP libary is not supported by default on Android emulator. The problem is that the
manager == null - thats why you are getting the NullPointerException.

Luckily, there is a work-a-round. Download this link and copy it into ...\.android\avd\.avd folder.

Start your emulator and

 Boolean voipSupported = SipManager.isVoipSupported(this);
 Boolean apiSupported = SipManager.isApiSupported(this);

should now return true.

Source: http://xilard.hu/