Hi, I work with PjSip 1.10. I encountered an assertion when receiving SDP with multiple m-lines: *v=0* *o=FreeSWITCH 1322450156 1322450157 IN IP4 10.13.22.87* *s=FreeSWITCH* *c=IN IP4 10.13.22.87* *t=0 0* *m=audio 22870 RTP/AVP 0 8 3 101 13* *a=rtpmap:101 telephone-event/8000* *a=fmtp:101 0-16* *a=ptime:20* *m=audio 22870 RTP/AVP 98 101 13* *a=rtpmap:98 iLBC/8000* *a=fmtp:98 mode=30* *a=rtpmap:101 telephone-event/8000* *a=fmtp:101 0-16* *a=ptime:30* *Assertion failed: (!"Bug! Offer should have been validated"), function match_offer, file ../src/pjmedia/sdp_neg.c, line 1147.* It seems that PjSip does not handle this correctly. As I understand it should answer with a response that contains the media stream that is accepted. How can I fix it? Thanks, Yaron -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20111128/3fcf4435/attachment.html>