[SR-Users] get_redirects with t_next_contacts

[Marrold]

I've found the following in an old thread that should help me debug, I will
let the list know how I get on.

pv_printf("$var(contact)", "$xavp(contacts[0]=>uri)");
xlog ("L_NOTICE", "var(contact)=$var(contact)\r\n");

On Thu, Mar 31, 2016 at 12:46 AM, Marrold <kamailio at marrold.co.uk> wrote:

> Hi all,
>
> I am having some issues using get_redirects() from the UAC_Redirect module
> in conjunction with  t_next_contacts from the TM Module. I've searched
> Google and the list but the only references I can find are several years
> old.
>
> I am attempting to configure Kamailio so it if receives a 3XX redirect
> message, it will store the Contacts it contains, and attempt them in 'Q'
> parameter order.
>
> So for the Contact below-
>
> Contact: <sip:10.0.97.21:5060>;q=0.2,<sip:5.29.13.139:5060>;q=0.5.
>
> I want Kamailio to try 5.29.13.139, and if that times out, or is rejected
> in someway, try 10.0.97.21.
>
> If I use t_relay rather than t_next_contacts, kamailio branches the calls
> and relays them in parallel regardless of Q value - this is not what I want.
>
> If I use t_next_contacts, it attempts 5.29.13.139 which is rejected with a
> 401, but it doesn't attempt 5.29.13.139 and responds "408", "Request
> Timeout MH 2"
>
> Relevant script section is below, has anyone been able to get this working?
>
> failure_route[302] {
>
>     if (t_check_status("302")){
>         xlog("L_ALERT","Failure Route: 302\n$mb");
>
>         get_redirects("*");
>
>         if (!t_load_contacts()) {
>             send_reply("500", "Server Internal Error - Cannot load
> contacts MH");
>             exit;
>         };
>
>         if (!t_next_contacts()) {
>             t_reply("408", "Request Timeout MH");
>         } else {
>             t_on_failure("302");
>             t_relay();
>             exit;
>         };
>     } else if (t_check_status("[456][0-9][0-9]")){
>
>         if (!t_next_contacts()) {
>             t_reply("408", "Request Timeout MH 2");
>         } else {
>             t_on_failure("302");
>             t_relay();
>             exit;
>         }
>     }
> }
>
> Thanks,
>
> Matthew
>
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