[SR-Users] t_uac_send function with From tag

[João Vitor Arruda]

I have a follow up question on this.

Now that the From tag works as expected I'm not getting a "400 Bad
Request" for the CANCEL being created by the t_uac_send inside a
failure_route anymore.
But now i'm getting "481 Call/Transaction Does Not Exist"
Since the from header and tag, to header, Call-ID and CSeq all matches
the original INVITE I suspect that is because the Via header branch
parameter in the CANCEL doesn't match the one from the original
INVITE.

There is a way to make it matching?

Regards,
Joao Arruda

Em qui., 19 de nov. de 2020 às 17:40, João Vitor Arruda
<joao.arruda at gmail.com> escreveu:
>
> Hi Daniel,
>
> I've tried this patch and now the From tag works as expected.
> Thank you very much for the quick response and patch.
>
> Regards,
> Joao Arruda
>
> Em qui., 19 de nov. de 2020 às 13:09, Daniel-Constantin Mierla
> <miconda at gmail.com> escreveu:
> >
> > Hello,
> >
> > can you try with master branch or with the patch from the next commit?
> >
> >   *
> > https://github.com/kamailio/kamailio/commit/aa6e9963b2725c1b6b7e5ff995a77c222d95fa3c
> >
> > If all ok, then I can backport to stable branches.
> >
> > Cheers,
> > Daniel
> >
> > On 18.11.20 21:45, João Vitor Arruda wrote:
> > > Hello,
> > >
> > > I'm trying to use the function t_uac_send inside a failure_route as
> > > described in https://kamailio.org/docs/modules/5.3.x/modules/tm.html#tm.f.t_uac_send
> > > to send a CANCEL out.
> > >
> > > Although the documentation says "it can include From/To tags" i was
> > > not able to get the from tag provided to be used. Another random
> > > generated one is used.
> > >
> > > I've tried the following format without success:
> > > t_uac_send("CANCEL", "$ru", "", "", "From: <$fu>;tag=$ft\r\nTo:
> > > $tu\r\nCall-ID: $ci\r\n", "")
> > > t_uac_send("CANCEL", "$ru", "", "", "From: $fu;tag=$ft\r\nTo:
> > > $tu\r\nCall-ID: $ci\r\n", "")
> > > t_uac_send("CANCEL", "$ru", "", "", "From:
> > > bob at kamailio.org;tag=2w3e\r\nTo: $tu\r\nCall-ID: $ci\r\n", "")
> > >
> > > In the last one which is copied from the documentation that is how the
> > > From header going out looks like:
> > > From: <bob at kamailio.org;tag=2w3e>;tag=3393f0703fb0ccaca74109ff37de39f5-36d71ef0
> > >
> > > Any tips on how to get the From tag passed to the function to be used?
> > >
> > > Thanks,
> > > Joao Arruda
> > >
> > > _______________________________________________
> > > Kamailio (SER) - Users Mailing List
> > > sr-users at lists.kamailio.org
> > > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
> >
> > --
> > Daniel-Constantin Mierla -- www.asipto.com
> > www.twitter.com/miconda -- www.linkedin.com/in/miconda
> > Funding: https://www.paypal.me/dcmierla
> >