route[1] {
        # send it out now; use stateful forwarding as it works reliably
        # even for UDP2TCP
        t_on_failure("1");
        t_relay();
        exit;
}

failure_route[1] {
        log(1,"couldn't route to primary, trying secondary\n");
        append_branch("sip:1@ipbx.provider.org:5061");
        t_relay();
}
(END)