Hi James > I've two suggestions (three if we count agreeing with Alex's > suggestion to consider not supporting that UA).
Unfortunately, at the moment, not an option. > - Get kamailio to manually do the steps that loose_route() would do > anyway. This is messy, because it requires good understanding of loose > routing. You might remove the supplied Route header field, then get > the transport/host/port from your saved Record-Route header fields, > and then set the $du and $fs explicitly (and then get any _other_ > Record-Route values and insert them as Route values), all while being > aware of "r2" parameters (to know whether to exclude one or two Route > values). It might work, but I don't think I'd ever want to even > attempt this nonsense. I started working in this direction and got this working for transport UDP. After that, I noticed that not msg_apply_changes() caused the issue, but that by mistake I was indeed calling rtpengine_manage() twice in some re-invite situations which caused the duplicate SDP. > - Add TOPOS to kamailio. That strips the topology from the message, > and then the faulty UA should never see Route or Record-Route header > fields so never wreck them. It requires kamailio to keep state in a > database, though, but it should work well. I found TOPOS not being able to cope with spiralling calls in this situation which is very common: * Two customer, Alice and Bob, registered on the same Kamailio Registrar running TOPOS. * Kamailio Registrar are not dialog aware and do not route calls. For this there is a central 'core' kamailio instance running dialog, gathering CDR and knowing how to route calls. So the call flow is: Alice => Registrar => Core => Registrar => Bob The same call passes the registrar twice. This, as I observe (it's still possible I did something wrong), breaks topos and header get replaced the wrong way! -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- 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 -- [email protected] To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender!
