Originally Posted by kensing65
If you add that unknown number to the address book, how do you disable the alert for just that number?
To my knowledge, you cannot add an "unknown number" entry to your address book, and therefore cannot specify how these calls are handled.... hence my earlier "brilliant" comment to the poster who suggested this.
You Mail however, does have settings for unknown and private/blocked numbers. I have my settings deliver a sarcastic message to blocked/private callers indicating if they don't want me to know who they are, then I don't want to talk to them. Then it "ditches" them, disallowing them from even leaving a message.