Hi Everyone, Finally i solved the problem of building pjsip on amv7 and armv7s by downloading the code from following link. https://github.com/chebur/pjsip. After successfully executing the code i really didn't understand what to should i do further to integrating voip in ios app. The output was showing "Pjsip Telnet nuber". can any one help me on the further process. Best Regards, Prasad. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140428/75f0c25f/attachment.html>