This particular number called my home 12 times yesterday.  They've already called twice today.  They never leave a message. never say anything when I answer, and when I tried calling the number, it goes to a message stating that this number is not in service.  I feel that this is harassment.  It's very intrusive and it needs to stop.  I am on the no-call list, but that doesn't seem to stop the unwanted calls.

Windows tech support scam, claimed my computer had a virus