        # block expensive area codes
        if (uri=~"^sip:00355[0-9].*@.*" |
        uri=~"^sip:00358830[0-9].*@.*" |
        uri=~"^sip:001670.*@.*" |
        uri=~"^sip:001671.*@.*" |
        uri=~"^sip:00247[0-9].*@.*"
               ) {
                       sl_send_reply("409", "Country not in plan");
                       break;
                };