What you said is only will happen when call forked. But from SIP message above, call not forked. This isn't asymmetric codecs case. The UAS created two different SDP answer for one offer. orig line is different. regards, Gang On 4/23/09, Klaus Darilion <klaus.mailinglists at pernau.at> wrote: > > Hi gang! > > Gang Liu schrieb: > >> This provider's SDP answer isn't correct. >> For SDP, it should be only one answer for an offer. >> If offer in invite, answer must be first reliable response, which is only >> 2xx in RFC 3261, extended in other RFCs. >> If answer in provisional response, then need repeated in the 200. >> > > I wonder if it would be standard conform if the 200 OK uses a different > to-tag (as then it would be a different dialog). > > regards > klaus > > >> regards, >> Gang >> On Tue, Apr 21, 2009 at 10:46 PM, Alexei Kuznetsov <eofster at gmail.com<mailto: >> eofster at gmail.com>> wrote: >> >> On Tue, Apr 21, 2009 at 5:43 PM, Michael Bradley Jr >> <mbradley.jr at gmail.com <mailto:mbradley.jr at gmail.com>> wrote: >> >> I've noticed a one-way audio problem with one of the SIP >> providers. It's >> >> definitely a media issue, not a network issue. I make a call, >> another >> >> party answers and hears me, but I can't her another party. When >> he or >> >> she starts speaking, the output on my side says >> >> >> > >> > can you please name one of those providers? >> >> In my case it is the Russian provider pctel.ru <http://pctel.ru/>. >> >> Alexei >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org <http://blog.pjsip.org/> >> >> pjsip mailing list >> pjsip at lists.pjsip.org <mailto:pjsip at lists.pjsip.org> >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip at lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090423/b2669ff6/attachment.html>