[SR-Users] Kamailio cancel branch only after receiving replies

Aqs Younas aqsyounas at gmail.com
Tue Jan 3 12:52:59 CET 2017


Thank You. Created.
https://github.com/kamailio/kamailio/issues/909

On 3 January 2017 at 13:20, Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> Hello,
> this is the behaviour required by rfc, to send cancel only after receiving
> a provisional reply 1xx.
>
> The cancel_b_method parameter is there to control this behaviour, but it
> may apply only to the case when the cancel is received and needs to be
> forwarded, so this needs to be investigated for t_cancel_branches("others").
>
> Perhaps the best is to open an item on issue tracker from
> github.com/kamailio/kamailio not to forget about it -- these days are
> rather busy, with the freezing of the release in few days.
>
> Cheers,
> Daniel
>
>
> On 02/01/2017 21:11, Aqs Younas wrote:
>
> Greetings list,
> I am forking a call to multiple destinations and want to keep the only
> branch which sends quicker first 180/183 reply and cancel the remaining
> branches. Below is my related cfg snippet.
>
>
> modparam("tm", "failure_reply_mode", 3)
> modparam("tm", "fr_timer", 30000)
> modparam("tm", "fr_inv_timer", 120000)
> modparam("tm", "cancel_b_method", 2)
> ...
> route[SIPOUT] {
>         if (uri==myself) return;
>
>         append_hf("P-hint: outbound\r\n");
>         append_branch();
>         append_branch();
>         route(RELAY);
>         exit;
> }
> onreply_route[MANAGE_REPLY] {
>         xdbg("incoming reply\n");
>         if(status=~"[12][0-9][0-9]") {
>                 xlog("L_INFO","Received $rs (IP:$si:$sp)\n");
>                 if(status=~"18[03]"){
>                         t_cancel_branches("others");
>                         xlog("L_INFO","cancelled all other branches\n");
>                 }
>                 route(NATMANAGE);
>         }
> }
> ...
>
> But I see kamailio does not instantly send CANCEL to other branches after
> it has received 180/180 from any branch.
> Kamailio is sending CANCEL to other branches after they start sending
> 180/183 one by one. How can I cancel all other branches instantly?
>
> I am sure there is something wrongly configured in my configuration.
>
> Any suggestion is much appreciated.
> Best Regards.
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
>
>
> _______________________________________________
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>
>
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