I am getting sick and tired of getting calls from the number 91822 (caller ID) lately.

They are all just the usual foreign voice calling from 'Microsoft/windows/blah security' saying the usual speech about 'your PC is reporting viruses'. 

I have tried being polite and tried being rude - they still ring - its about 5 times this week alone.

The only people I know that dont seem to get these calls are people who dont list their numbers in the phone book.

Any ideas (real ones) about how to stop them?

I have come to the conclusion lately that its a HUGE liability being listed in the phone book - seems every 'we want your money'/'we want to poll you' outfit just trashes the listings.

Getting VERY annoyed!!!!