I MAY NOT HAVE ALL THE DETAILS CORRECT BUT: Saw the other day that the phone companies is changing to some new program that has one number digital encrypted. So these ding bats will find it much harder to spoof or fake a phone number. Guess the federal government was mixed up in it also to implement it STARTING IN THE SPRING!! Also the cell phone companies are coming up with new stuff (like an additional code) to enter to complete the call. The theory is robo calls cannot enter the code you choose. Something also like it verifies the number that's calling. If its a number not in service the call dies asap.