[SR-Users] Re: parallel forking: how to fix 183 g711 then 200 ok g722?

Hello, as frequently mentioned, Kamailio is a SIP proxy and not a B2BUA in its core. There are some modules that implement limited B2BUA functions, like rtp_media_server. But I think if you want to go that route you should look into another B2BUA, or as suggested before use one of the other strategies. Cheers, Henning -----Original Message----- From: Benoit Panizzon via sr-users <sr-users(a)lists.kamailio.org> Sent: Tuesday, October 15, 2024 2:54 PM To: Benoit Panizzon via sr-users <sr-users(a)lists.kamailio.org> Cc: Benoit Panizzon <benoit.panizzon(a)imp.ch> Subject: [SR-Users] Re: parallel forking: how to fix 183 g711 then 200 ok g722? Hi Btw, exactly same issue also happens with serial forking. A => B => C A invites with g711/g722 B generates early 'ringback' audio g711 durcing 183 B times out, serial forking to C with inital SDP from A B answers with g722 I agree with Daniel, that messages from C contain a different to tag than the ones from B, so one could argue, this is not the same session. But I doubt the companies building SBC takes such details into account. In fact, I traced the issue again, our commercial SBC, operating in B2BUA mode is using a different set of ToTag,FromTag on each leg and the ToTag on the A leg are the same despite the ToTag on the B leg being different after forking. So from A's point of view, an additional SDP answer is receivedin the same session, which shall be dropped. So, still wondering, is there a way so issue a Re-Invite or Update from Kamailio? Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________ __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: