Hi Joshua Thank you for your reply.
Indeed, Ubuntu only ships with this old version. Upgraded to 16.2. via PPA. Problem persisted. Well, I already mentioned that this is a machine with two physical interfaces with different routes which on the 'external' side handles SIP customer registrations and has an 'internal' IC Trunk to a commercial Voice Switch via private IP Range. I had the problem, that some of the packets sent out on the 'external' side contained 'private' IP addresses in either signaling or SDP. So I threw all options I could find into the config to bind transports, endpoints, media and so on to the corresponding interface ip address. First this looked good. I had the correct IP in every header and SDP I expected. well setting under transport: external_signaling_address=[local IP] Assuming this is the own interface IP that would be told to external endpoints was obviously wrong. In the end this caused the Proxy-SBC to believe it was not getting an OK to it's forwarded registration and discard this session. 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 ______________________________________________________ -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
