Called my cell 3 times today already and twice yesterday. Don't these idiots know that folks don't answer calls that just have a phone # and no name on the caller ID.
Block it! Either call your service provider or most providers offer the ability for you to block these numbers yourself. Inform the caller that it is a 10 thousand dollar fine to solicit cellular phones and ask them never to call back. If they do call you back, then they can be sued for the ten grand.
Have received a few of these calls and have never answered them... this past one a couple minutes ago. I called the number back from my work land-line and the recording said it was 'Restricted' and cut the call off.