SIP implementation on Android 2.1

Question

I want to work on SIP and Android. I have to allow two users to call each other using iptel.org. One way to do this, I can use the demo version with 2.3, but this requires a real device. Since I do not have a real device, I will not work on platform 2.1. I'm a newbie, so I need a good step to get started so I can easily complete it.

Answer 1

PJSIP ( http://www.pjsip.org/ ) is a good and portable SIP platform. It doesn't have android support yet (even if it's just a matter of time), but you can check it out: http://code.google.com/p/csipsimple/ , which is android SIP support built on PJSIP.

Answer 2

Android 2.1 does not have native SIP support, so you need to find a third-party library.

Answer 3

JAIN-SIP http://jsip.java.net/ is also a very good SIP stack, including a reference implementation of SIP-API. It works fine on Android <= 2.2.

Here (http://groups.google.com/group/mobicents-public/browse_thread/thread/e38fbdd874083d49/4fdb4123419e7a74) is a nice discussion with additional information.