Hi Benny, An assert in a timer is being launched when I send an INVITE which is answer with '100 TRYING' and then '404 Not Found'. It seems the problem is a re-schedule of an entry, once when the '100 TRYING' and then when the 404 is processed. _timer.c_ /* Prevent same entry from being scheduled more than once */ PJ_ASSERT_RETURN(entry->_timer_id < 1, PJ_EINVALIDOP); In this scenario, instead of an assert shouldn't me made a single condition check? Thank you for your time. Best regards, Nuno Costa -- ========================================= Nuno Costa Senior Engineer WIT-Software Lda. Coimbra (Portugal), San Jose (California) Phone : +351.239.801030 Email : nuno.costa at wit-software.com Web: http://www.wit-software.com ========================================= -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080918/15c42cfd/attachment.html