route[RELAY] {
        if (is_method("INVITE")) {
                t_on_failure("FAILTWO");
        }
        if (!t_relay()) {
                sl_reply_error();
        }
        exit;
}

failure_route[FAILTWO] {
        xlog("L_INFO", "FAILUREFROMEXTERNAL: Entered\n");

        if (t_check_status("302")) {
                xlog("L_INFO", "FAILUREFROMEXTERNAL: 302 detected\n");
        } else {
                xlog("L_INFO", "FAILUREFROMEXTERNAL: other detected\n");
        }

 xlog("L_INFO", "FAILUREFROMEXTERNAL: Exiting\n");
}