[Kamailio-Users] nested redirect

[Daniel-Constantin Mierla]

Hello,

can you post here the SIP messages? Will help to spot if there is 
anything wrong with the ACK or something else in the signaling.

Cheers,
Daniel


On 09/13/08 04:11, kentp at globalpops.com wrote:
> i have a simple redirect server working:
>
> Call comes from switch (A) to kamailio redirect server (B)..
> (B) runs perl script to determine route
> (B) sends Stateless 300 redirect reply to (A). 
> (A) sends ACK to (B). 
>
> Now, I need to add a nested redirect... 
>
> call comes from sitch (A) to kamailio redirect server (B)..
> (B) then needs to send the call to third party proxy (C).. 
> (C) will return 302 redirect..
> (B) sends ACK to (C)
> (B) needs to read the contact header, then run perl script to determine route (using the contact value 
> returned from (c))
> (B) then sends 300 redirect back to (A).
> (A) sends ACK back to (B)
>
>
> so far i have been trying something like this, but the final (A) ACK gets ignored and (B) keeps sending 
> multiple 300's to (A):
>
> route {
> 	route(1);
> }
>
> route[1] {
> 		t_on_reply("1");
> 		t_on_failure("2");
> 		if (!t_relay("proxy.server.c:5060","0x02")) {
> 		                sl_reply_error();
>         	}
> onreply_route[1] {
>         if(t_check_status("302")){
>                 $var(lrn_from_bv) = $ct;
>         }
> }
> failure_route[2] {
>         
>         if (t_check_status("3[0-9][0-9]")) {
>                 route(2);
>                 exit;
>         }
> route[2] {
> 	        if(perl_exec("callcheck")){
> 	                avp_pushto("$ru", "$avp(s:routes)/g");
> 	                t_reply("300","Go Here");
> 	                exit;
>         	}
>         }
>         
>   
>
>
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>
>   

-- 
Daniel-Constantin Mierla
http://www.asipto.com