If I don't know the caller I don't pick up. This is annoying because they never leave a message but stay on the line long enough for the answering machine to "beep" the message beep. I don't owe any company money, don't want to buy anything or donate over the phone, don't want participate in surveys, prefer to speak only with callers who actually leave a "live" person message and I am on the Missouri NO CALL LIST. Will this make the calls stop... doubt it, seriously doubt it.