Hi Suresh, i think, you havent gone thorugh the basic documents of PJsip, and you are trying to run @ one shot..? :(. ? Have a look @ my small web-page: http://www.geocities.com/muki_champs Regards, Mukesh Kumar, Sr.Software Engineer, Mobile Application Developer. Hyderabad. India. +91-9397845485 (M)? ----- Original Message ---- From: Suresh Tattikota <suresh.tattikota@xxxxxxxxxxxxxxxxx> To: pjsip at lists.pjsip.org Sent: Monday, June 9, 2008 2:57:00 PM Subject: pj_thread_this: Assertion- failed. Hi ? This is suresh i am geting this error while i am creating thred PjThread: ../src/pj/os_core_unix.c:519: pj_thread_this: Assertion `!"Calling pjlib from unknown/external thread. You must " "register external threads with pj_thread_register() " "before calling any pjlib functions."' failed. Aborted ? please gide me how to use threads ? thanks®ards suresh -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080609/98436295/attachment.html