try this:
# 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; };
regards Christian