Hi Igor, hi kamailions, i create an kamailio logfile with sipflow via $mb. Its corresponding to the kamailio.cfg in this thread. Callflow is B2BUA 172.20.170.1 --> 172.20.120.59 --> 172.20.120.101/212.XX.XX.XXX --> MS-Teams.
172.20.170.1 B2BUA, unencrypted media 172.20.120.59 INTERNAL SIP-ROUTER (no problems, no media) SBC/Kamailio 172.20.120.101 (internal) 212.XX.XX.XXX (external) After successful connection i press the "on hold" button in MS-Teams chat to force an RE-INVITE. Here you see the 200 OK without SRTP to MS-TEAMS https://gist.github.com/khorsmann/9951b02f03970d45bafb0b59d26d6a02#file-kamailio-logfile-txt-L895 200 OK without SRTP https://gist.github.com/khorsmann/9951b02f03970d45bafb0b59d26d6a02#file-kamailio-logfile-txt-L994 REASON: Q.850;cause=79;text="InternalDiagCode: SrtpEncryptionRequired, InternalErrorPhrase: Remote did not offer required SRTP" Cheers Karsten Am Do., 7. Nov. 2019 um 12:01 Uhr schrieb Igor Olhovskiy < [email protected]>: > Can you give an example of SIP trace where it's not working as expected? > > Cause reading through config will not help much without setting up a lab. > > On Nov 7 2019, at 11:27 am, Karsten Horsmann <[email protected]> wrote: > > Hello Mailinglist, > > i try to figure out, how to solve RE-INVITES and SRTP: > > i have an kamailio route names route[MEDIAPROXY] that i used to controll > rtpengine in an private and public ip setup. This works fine for me now. > > It use the permission module and the adress table to figure out > $var(mediagroup) = allow_address_group($Ri, 0); received from internal or > external ip. > The idea is from SBC-OS chamless stolen, so thanks for that. > > So fare so good. I adapted SRTP also to this. > But on RE-INVITES it stops handling SRTP correctly to the encryption > upstream. > And i am sure, its my fault. But i have no clue how to detect that > correctly. > > Any hints where i can read more about an correct handling on this? > > Here my main-config file / kamailio 5.3.x and rtpengine. > https://gist.github.com/khorsmann/02bd98a628a190caee68fc3d876a3448 > > -- > Mit freundlichen Grüßen > *Karsten Horsmann* > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > -- Mit freundlichen Grüßen *Karsten Horsmann*
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