Nov 25, 2015
These are cybercriminals using computers to spoof their numbers, identities and locations, making them next to impossible to trace and prosecute. They are intent on gaining control of your computer and personal information and have NO intention of stopping the calls. And--the more you tell them not to call, the more they will.
Go here for a detailed discussion on call blocking devices:
http://800notes.com/forum/ta-5d4e343675a5629/call-blocking-devices