Of course, this is the manual approach for two gateways.  If you have more than two gateways and need to cycle through a list, you may want to consider the dispatcher module. s

Alex Balashov wrote:

Asim Riaz wrote:

     so then what is the posibility to send calls the first proxy if
   thats fail route to another one and so on ?

The possibility is high.  :-)

Here - try something like this:

route {

   ...

   if(is_method("INVITE"))
      route(1);

   ...
}


# -- Relay INVITE -- #

route[1] {
   t_on_failure("1");

   if(!t_relay("udp:proxy1:5060")) {
      xlog("L_INFO", "Final relay failure!\n");
      t_reply("503", "Service Unavailable");
      exit;
   }
}

# -- Backup INVITE route on failure of route(1) -- #

failure_route[1] {
   if(t_was_cancelled()) {
      xlog("L_INFO", "Transaction cancelled.\n");
      exit;
   }

   append_branch();

   if(!t_relay("udp:proxy2:5060")) {
      xlog("L_INFO", "Relay to proxy2 failed - not so good!\n");
      t_reply("503", "Service Unavailable");
      exit;
   }
}

--
Alex Balashov
Evariste Systems
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