[Kamailio-Users] Translate "486 Busy Here" to "600 Busy Everwhere"

[Geoffrey Mina]

One question on this...

In my scenario, would using t_reply in failure_route send the response
to the party who sent the INVITE or the party who sent a message which
caused Kamailio to end up in failure_route?

On Tue, Nov 10, 2009 at 10:38 AM, Alex Balashov
<abalashov at evaristesys.com> wrote:
> geoffreymina at gmail.com wrote:
>>
>> Hello,
>> I have a need to translate a 486 from my asterisk server to a 600 when
>> sending upstream to my carrier. The problem I am seeing is that when I
>> return 486, the carrier re-presents the call to my next server in the SRV
>> rotation... I really want the 486 to be a final disposition, so I am
>> assuming sending a 600 would solve my issue.
>>
>> I am not sure how to go about forwarding the message, but modifying the
>> SIP code... is that even allowed?
>>
>> This would be something like what I'm trying to do:
>>
>> failure_route[1]{
>> if(t_check_status("
>
> Sure, you can do that.  It is not a good idea to do so in principle because
> it violates how proxies should behave;  proxies are very thin interoperation
> layers that are designed to statefully pass requests and replies back and
> forth more or less strictly as intended by the endpoints involved, and a
> B2BUA would more ideally fit your goal. Nevertheless, it is possible.
>
> failure_route[1] {
>
>        if(t_was_cancelled())
>                exit;
>
>        if(t_check_status("486")) {
>                t_reply("603", "Declined");
>                exit;
>        }
> }
>
>
> --
> Alex Balashov - Principal
> Evariste Systems
> Web     : http://www.evaristesys.com/
> Tel     : (+1) (678) 954-0670
> Direct  : (+1) (678) 954-0671
>