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

[Alex Balashov]

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