hi, pjsip tls cant send BYE, log file: 07:55:06.241?? Master/sound? Underflow, buf_cnt=0, will generate 1 frame ?07:55:06.241?? Master/sound? Underflow, buf_cnt=0, will generate 1 frame ?07:55:06.281? tsx0x2456b2d0? Failed to send Request msg BYE/cseq=29613 (tdta0x2456f880)! err=171060 (Unsupported transport (PJSIP_EUNSUPTRANSPORT)) ?07:55:06.346? pjsua_media.c? Media session for call 0 is destroyed ?07:55:06.346?? pjsua_call.c? Failed to send end session message: Unsupported transport (PJSIP_EUNSUPTRANSPORT) [status=171060] why unsupported transport is occurring. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091014/4ed1f87f/attachment-0001.html>