[SR-Users] noack and t_relay erros errors

[JR Richardson]

> Hi All,
>
> I'm still getting these errors and I'm struggling to resolve the
> problem.  I think I'm missing an append_branch or something simple in
> my config, a little guiedance will be appriciated.
>
> The error:
>
> Nov 11 10:23:26 sip-router1 /usr/local/sbin/kamailio[23739]: ERROR: tm
> [t_fwd.c:1379]: ERROR: t_forward_nonack: no branches for forwarding
> Nov 11 10:23:26 sip-router1 /usr/local/sbin/kamailio[23739]: ERROR: tm
> [tm.c:1300]: ERROR: w_t_relay_to: t_relay_to failed
>
> The sip graph causing the error:
>
> http://pastebin.com/VHhQ1sJY
>
> My config:
>
> http://pastebin.com/BYn4g5ur
>
> Do I need to have a mechanism to deal with a 486 form the carrier?
>
> Thanks.
>
> JR
> --
> JR Richardson
> Engineering for the Masses
>
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 11 Nov 2010 11:52:21 -0500
> From: Alex Balashov <abalashov at evaristesys.com>
> Subject: Re: [SR-Users] noack and t_relay erros errors
> To: sr-users at lists.sip-router.org
> Message-ID: <4CDC1F45.1000704 at evaristesys.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> 1. One problem may be that you are calling route[RELAY] from your
> failure route and using sl_send_reply().  The route[RELAY] is still
> being invoked in a failure route execution context, even if you have
> managed to contextually invoke another route, or subroutine if you will.
>  Stateless replies (sl_reply_error()) cannot be sent from within a
> failure route.
>
> 2. Yes. throw an append_branch() into your failure route.
>
> --
> Alex Balashov - Principal
> Evariste Systems LLC
> 1170 Peachtree Street NE
> 12th Floor, Suite 1200
> Atlanta, GA 30309
> Tel: +1-678-954-0670
> Fax: +1-404-961-1892
> Web: http://www.evaristesys.com/
>
Well, that seemed to help greatly, so far no more errors after
changing my failure route to:

failure_route[FAIL_ONE] {
        if (t_is_canceled()) {
        exit;
        }

        ds_mark_dst("P");
        ds_next_dst();
        append_branch();
        t_relay();
}

Thanks Alex, right on target again.

JR
-- 
JR Richardson
Engineering for the Masses