I had the similar problem time ago, but it truly said me a truth :) - i had external thread using (no pj_thread). Solution was to register this thread, something like: //register this thread in the pj space pj_thread_desc desc; pj_thread_t* this_thread; pj_thread_register("ExampleThread", desc, &this_thread); in the thread function i use (for ex. void ExampleThread();) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090427/a9cc1309/attachment.html>