[OpenSIPS-Users] Drouting failover by carrier only

[Alex A]

Hi Everyone,



Is it possible to failover to next carrier (instead next gateway) while using drouting? 





I got the below to work; however currently, use_next_gw gets the next gateway in the list, so 

if gwlist= #0,#3  



and one of the carriers has multiple gateway IPs, the retry happens many times to the same carrier: 





route[droute] {



        xlog("DRoute GATEWAY: source:$si - $fU -> $rU\n");

        if (!do_routing(0,"F")) {

                xlog("DRoute GATEWAY: Failed. source:$si -$fU -> $rU\n");

                send_reply(500, "No Gateway to Route found");

                exit;

        }

        route(relay);

        exit;



        }




route[relay] {



        if (is_method("INVITE")) {

                t_on_failure("missed_call");

        }



        if (!t_relay()) {

                if (use_next_gw()) {

                      xlog("L_INFO","Next Gateway: From=$fu, To=$tu,RU=$ru, CI=$ci IP=$si\n");

                      t_on_failure("missed_call");

                      route(relay);

                      exit;

                }

                else {

                        send_reply(503, "Service not available, no more gws");

                        exit;

                }

        };

        exit;

}





failure_route[missed_call] {



                #if (use_next_gw(, , $var(carrier_attrs))) {

                if (use_next_gw(, $avp(gw_id),$avp(carrier_id))) {

                      xlog("MissedCall--Next Gateway: From=$fu, To=$tu,RU=$ru, CI=$ci IP=$si\n");

                      xlog("Carrier attributes of current gateway: $avp(gw_id). carrier: $avp(carrier_id)\n");



                      t_on_failure("missed_call");

                      route(relay);

                      exit;

                }

                else {

                        send_reply(503, "Service not available, no more gws");

                        exit;

                }









Thank you.
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