A marketing ploy that has recently been driven into the ground by phone companies such as Ameritech. It claims to completely eliminate telemarketing, sales and private calls by sending the caller to a prompt which notifies them that the customer has Privacy Manager and allows the unidentified caller to identify him/herself.

The only thing this $10/month feature really stops, however, is prank calls. If a telemarketer really wants to annoy me, he or she will leave their name and still make my phone ring.