HI all i am using the pjproject version1.6. and my problem is when i making a call from the application call established successfully but it is disconnected after the 20 seconds. but this is happening for particular sipserver not all the servers.but when i try with other voip clients the call is not disconnected. i think the problem with pjsip client how to solve the problem ? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20110207/dd12bba8/attachment.html>