I think it's about time the government or the telephone service provider regulate this cold calling attempts to either con you or sell you whatever it is they are selling. It's a scandal that service providers are also selling our numbers to others. I was on ex-directory and they still got my number. Been plagued with these calls ever since, even on Sundays and late evenings. What's ecevn worse are the recorded calls which simply leave their messages on your answering machine.