[Users] how to configure failure route for b2bua or GW

[liu york]

hi all

I try to build failure route to another backup b2bua or pstn gw,it seems can work after timeout ,but unfortunate,the openser send a 408 messeage to phone before failure route.,config like that,have any general config to failover or loadbalance for me.Many many thx.

route[4] {
                
                log(1, "b2bua");
                rewritehost("192.168.1.204");
                forward("192.168.1.204:80");
                t_on_failure("2");
                t_relay();
          }

failure_route[2] {
               log(1, "b2bua");
               rewritehost("192.168.1.226");
               forward("192.168.1.226:5060");
               t_relay();           
}