[SR-Users] Sending to an announcement server from a failure_route

[Aqs Younas]

Remove append_branch().

On Mon, 17 Dec 2018 at 6:08 AM, Boden Garman <bpgarman at fastmail.fm> wrote:

> Hi list,
>
> I'm trying to play an announcement for my users when my PSTN gateway
> responds with a 404 Not Found (Reason: Q.850;cause=3), indicating a wrong
> number. I'm a bit lost and would appreciate any advice.
>
> What I am seeing is two parallel SIP invites, one to my announcement
> server (hooray!) and one to the PSTN gateway again (which I don't want).
> How do I stop the original branch from starting again?
>
> I've tried changing the order of rewritehostport and append_branch without
> any difference. I've also tried to use t_relay() instead of the RELAY route.
>
> I'm using Kamailio 5.1 and have modified the deafult kamailio.cfg
>
> Thanks!
> Boden
>
> I think this is the relevant parts of the config:
>
> # PSTN GW routing
> route[PSTN] {
>          [PSTN regex logic omitted]
>
>         # classify as an outbound call
>         set_dlg_profile("outbound_calls");
>
>         # select a PSTN gateway from the dispatcher
>         if (!ds_select_dst("66", "8")) {
>                 send_reply("404", "No destination");
>                 exit;
>         }
>
>         # failover if the selected PSTN gateway is down
>         t_on_failure("RTF_DISPATCH");
>
>         route(RELAY);
>         exit;
> }
>
>
> # Try next destinations in failure route
> failure_route[RTF_DISPATCH] {
>         xlog("inside RTF_DISPATCH");
>         if (t_is_canceled()) {
>                 exit;
>         }
>
>         # wrong number from PSTN
>         if (t_check_status("404")) {
>                 append_branch();
>                 append_hf("X-Application: announcement\r\n");
>                 append_hf("X-Announcement-Playback: wrong-number\r\n");
>                 route(TO_ANNOUNCEMENT);
>                 exit;
>         }
>
>         # next DST - only for 500 or local timeout
>         if (t_check_status("500") or (t_branch_timeout() and
> !t_branch_replied())) {
>                 xlog("selecting next destination");
>                 if (ds_next_dst()) {
>                         t_on_failure("RTF_DISPATCH");
>                         route(RELAY);
>                         exit;
>                 }
>         }
> }
>
>
> # Routing to announcement server
> route[TO_ANNOUNCEMENT] {
>         if (!is_method("INVITE")) {
>                 return;
>         }
>         rewritehostport('ANNOUNCEMENT_SERVER:5060');
>         route(RELAY);
>         exit;
> }
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20181217/1375d2dd/attachment-0001.html>