[SR-Users] t_cancel_callid - doesn't insert Reason header, if called from branch 0

[Pavel Veselovsky]

Hallo

so far I have no reaction on my question.
Has anybody similar experience that  t_cancel_callid() doesn't insert
Reason header, if called from branch 0?

What are differences between branch 0 and other branches?

Regards.
Pavel.

On Fri, Jun 3, 2022 at 3:17 PM Pavel Veselovsky <pavel.veselovsky at gmail.com>
wrote:

> Hallo all,
>
> I defined  branch_failure routing  block via t_on_branch_failure()
> In the branch_failure route, in case of "408 Request timeout" I am sending
> CANCEL with reason "t_cancel_callid("$ci", "$cs", "22", "408")".
>
> If the t_cancel_callid("$ci", "$cs", "22", "408") is called in
> branch_failure for branch idx 0, the CANCEL is sent, but Reason header is
> missing there.
> Why?  (I expect that t_cancel_callid() should insert Reason header
> regardless of branch it is called from)
>
> If the t_cancel_callid is called in branch idx !=0, the CANCEL contains
> Reason header with cause as expected.
>
> Thanks for clarification of this behavior,
> Pavel.
>
> P.S. code snipset:
> event_route[tm:branch-failure:primary]
> {
>  if ($T(reply_code) == "408")
>     {
>         if ($avp(branch_idx) == $T_branch_idx)
>         {
>             if (t_cancel_callid("$ci", "$cs", "22", "408"))
>             {
>                 xlog("L_INFO", "CANCEL sent ci:$ci, cs:$cs 408");
>             }
>             else
>             {
>                 xlog("L_INFO", "CANCEL not sent ... ci:$ci, cs:$cs 408");
>             }
>
>             $var(_palotmp_) = "sip:" + $avp(replaced_cfnry_target_number)
> + "@" + $dd + ":" + $dp + ";user=phone";
>             append_branch($var(_palotmp_),"1.0");
>
>             t_relay();
>             return;
>         }
>     }
> }
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20220607/fe543b77/attachment.htm>