Hi, any feedback on this? Thanks, Carsten Carsten Bock CEO (Geschäftsführer) ng-voice GmbH Millerntorplatz 1 20359 Hamburg / Germany http://www.ng-voice.com mailto:carsten@xxxxxxxxxxxx Office +49 40 5247593-40 Fax +49 40 5247593-99 Sitz der Gesellschaft: Hamburg Registergericht: Amtsgericht Hamburg, HRB 120189 Geschäftsführer: Carsten Bock Ust-ID: DE279344284 Hier finden Sie unsere handelsrechtlichen Pflichtangaben: http://www.ng-voice.com/imprint/ 2018-02-20 17:31 GMT+01:00 Carsten Bock <carsten@xxxxxxxxxxxx>: > Hi, > > i've identified a bug in PJSIP (and thereby in Asterisk 13): > > Scenario: > > UA calling to PJSIP > ---> INVITE (in SDP: a=inactive) > <--- 183 Session Progress (in SDP: a=inactive) > > (some conditions are met [a dedicated bearer on LTE is activated], so > the UA will activate the Audio-Stream by sending an UPDATE-Request) > > ---> UPDATE (in SDP: a=sendrecv) > <--- 200 OK (to the UPDATE, in SDP: a=sendrecv) > > What happens now, is wrong: > > <--- 200 OK (to the INVITE, in the SDP: a=inactive) > ---> ACK > > The 200 OK should be "a=sendrecv", since the original session was > activated/updated by the "UPDATE" request. > > After digging through the code of chan_pjsip/Asterisk, I've found that > it's actually a bug in PJSIP and not in Asterisk. Asterisk indicates, > that the call is hold during INVITE and upon UPDATE, it indicates that > the call was reactivated. > > Currently, I replace the a=inactive with a=sendrecv in the 200 OK on > Kamailio-Proxy, but that's more a dirty hack than a proper fix. > > I've verified the behaviour with Asterisk and the pjsip-ua from the > samples folder (both Version 2.7.1). > > Thanks, > Carsten > -- > Carsten Bock > CEO (Geschäftsführer) > > Meet us at MWC 2018 in Barcelona and see IMS and VoLTE in action! > (February 26th - March 1st, Hall 7 - Booth 7L80) > > ng-voice GmbH > Millerntorplatz 1 > 20359 Hamburg / Germany > > http://www.ng-voice.com > mailto:carsten@xxxxxxxxxxxx > > Office +49 40 5247593-40 > Fax +49 40 5247593-99 > > Sitz der Gesellschaft: Hamburg > Registergericht: Amtsgericht Hamburg, HRB 120189 > Geschäftsführer: Carsten Bock > Ust-ID: DE279344284 > > Hier finden Sie unsere handelsrechtlichen Pflichtangaben: > http://www.ng-voice.com/imprint/ _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip@xxxxxxxxxxxxxxx http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
