Hi Benny, Below is the stack trace and the 200 OK message(duplicate) that causes the assertion "../src/pjsip/sip_util.c:729: pjsip_process_route_set: Assertion `tdata->saved_strict_route==((void *)0)' failed.". Any pointers on how to fix this issue? Thanks, Ramesh ----------------------------------------------------------- 22 __kernel_vsyscall() 0xb7f24410 21 raise() 0xb7c0c085 20 abort() 0xb7c0da01 19 __assert_fail() 0xb7c0510e 18 pjsip_process_route_set() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_util.c:729 0x08064b14 17 pjsip_endpt_send_request_stateless() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_util.c:1065 0x080652ed 16 pjsip_dlg_send_request() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_dialog.c:1178 0x0807700b 15 inv_send_ack() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip-ua/sip_inv.c:353 0x08050136 14 mod_inv_on_rx_response() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip-ua/sip_inv.c:499 0x08050401 13 pjsip_dlg_on_rx_response() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_dialog.c:1819 0x0807840c 12 mod_ua_on_rx_response() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_ua_layer.c:891 0x08079818 11 endpt_on_rx_msg() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_endpoint.c:926 0x08062c47 10 pjsip_tpmgr_receive_packet() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_transport.c:1447 0x080695cc 9 udp_on_read_complete() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_transport_udp.c:163 0x08069d9f 8 ioqueue_dispatch_read_event() /home/ramesh/voip/pjproject-1.0/pjlib/src/pj/ioqueue_common_abs.c:548 0x080bf385 7 pj_ioqueue_poll() /home/ramesh/voip/pjproject-1.0/pjlib/src/pj/ioqueue_epoll.c:717 0x080c0fd1 6 pjsip_endpt_handle_events2() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_endpoint.c:718 0x08062689 5 pjsip_endpt_handle_events() /home/ramesh/voip/pjproject-1.0/pjsip/src/pjsip/sip_endpoint.c:746 0x0806272c 4 sip_worker_thread() /home/ramesh/voip/pjproject-1.0/pjsip-apps/src/samples/ptt2email.c:1140 0x0804cffc 3 thread_main() /home/ramesh/voip/pjproject-1.0/pjlib/src/pj/os_core_unix.c:469 0x080c1f9c 2 start_thread() 0xb7eb94fb 1 clone() 0xb7cb7e5e ------------------------------------------------------------ SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.1.102:5060;rport;branch=z9hG4bKPjCY.WsEZ7BfeiUTfMTuAMccocIw.IoVyT Record-Route: <sip:18005558355 at 21.137.73.140:5060;maddr=21.137.73.24> From: <sip:192.168.1.102>;tag=WmaacOCBdToVjIj3zlWB2mRBc7WJOBeI To: <sip:18005558888 at relay.three.com>;tag=cxIgVF8tRbBjn6Vq7CkhGuXQVjdETB.O Call-ID: cxIgVF8tRbBjn6Vq7CkhGuXQVjdETB.O CSeq: 9352 INVITE Contact: <sip:18005558355 at 213.137.79.50:5060> Content-Type: application/sdp Content-Length: 151 v=0 o=NY-MSW-2 3558 8303 IN IP4 21.137.79.91 s=sip call c=IN IP4 21.137.65.233 t=0 0 m=audio 19500 RTP/AVP 0 a=ptime:20 a=rtpmap:0 PCMU/8000 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090126/a9dc93b8/attachment-0001.html>