Hello, can you share a bit why you need this functionality? The reply belongs of course to the respective request. So the 200 OK reply in the BYE transaction is not related to the initial INVITE transaction request and reply/replies. Cheers, Henning Am 23.04.19 um 17:27 schrieb Duarte Rocha: Greetings, Is there a way to know in reply_route if a reply has direction downstream or upstream regarding the first INVITE? I know there are vars and methods for finding this out on requests, but i can't find anything for replies. Thanks in advance, Best Regards, Duarte Rocha _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://skalatan.de/services