Someone

ser1# cat /usr/local/etc/ser/ser.cfg
debug=10
fork=yes
log_stderror=yes

children=4

dns=no
rev_dns=no
fifo="/tmp/ser_fifo"

alias=ser1.voicio.com

loadmodule "/usr/local/lib/ser/modules/xlog.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
modparam("rr", "enable_full_lr", 1)

route{
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                break;
        };
        if (msg:len >=  2048 ) {
                sl_send_reply("513", "Message too big");
                break;
        };

        if (loose_route()) {
                route(1);
                xlog("L_NOTICE", "Two");
                break;
        };

        if (method=="REGISTER") {
                sl_send_reply("200", "OK");
        };

        if (method=="INVITE") {
            route(1);
        };

        xlog("L_NOTICE", "Three");
}

route[1]
{
        if (!t_relay()) {
                sl_reply_error();
        };
        xlog("L_NOTICE", "One");
}