Sorry, but it turned out that in calls where B replies first with "183 Session Progress" and which A acknowledges with PRACK request, P1 is not able to forward the PRACK, but responds with "404 Not found".
I cannot reproduce this in my test environment, because I don't have a SIP UA that uses Session Progress. Here is censored debug from production environment on what happens when P1 receives the PRACK: https://box.tutpro.com/tmp/prack.debug -- Juha _______________________________________________ Kamailio (SER) - Users Mailing List [email protected] https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
