Oct 17, 2011
These guys are persistent and if you answer them they just call more. Typically this is call spoofing, where information phishers pose as information collectors to gain private information about you using false numbers. The do not call list and better business bureau can't help because you don't actually have the number of the caller (usually it's an Internet call running through a proxy analogous to a VPN).
If you're on a cell phone here is what you do. Download a ringtone that is just silence. They're free and can be found on google quickly. Then make a contact for the caller on your phone, and set their ringtone to silent. They'll call forever, but you'll never have to listen.