I had the same problem with CANCEL requests for transactions created by an INVITE that was rewritten in a branch_route. I sent a small patch to dev list in October and didn't receive any comment. You can try to find it in sr-dev archive for October 2012.
> Yes, we know it's wrong. > But if we really need it, is there a way to do it? > > > -----Original Message----- > From: sr-users-boun...@lists.sip-router.org > [mailto:sr-users-boun...@lists.sip-router.org] On Behalf Of Alex Balashov > Sent: Wednesday, January 30, 2013 4:36 PM > To: sr-users@lists.sip-router.org > Subject: Re: [SR-Users] How to rewrite "tu" in CANCEL message ? > > On 01/30/2013 09:31 AM, Julia wrote: >> We need some number manipulation for outgoing calls to PSTN GW. >> The same manipulations must be in "ru" and "tu", because our PSTN GW adds >> redirection when tu ≠ ru. >> When we used INVITE re-parsing for CANCEL, modified "tu" is not included. > I would say your PSTN GW is doing it wrong. No routing should ever be > done on To. It is a purely cosmetic commentary on the intended logical > destination of the call. Only the RURI should be used for that. > _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users