Remember Those?

Remember those devices, primarily used by doctors and drug dealers alike? Oh what were they called? You know, you'd send them a message like *911, and then within five minutes you'd get a call back from this particular jackass from the nearest pay phone, to which you'd calmly request that he'd stop on the way home to get a gallon of milk. It wasn't to talk about groundbreaking events like, "Hey Sixtus, our autistic child just spoke," or "Jane, our neglected thirteen year old child, invited Bernardo "BJ" Jiminez over for dinner tonight. Oh and she's pregnant with his child, so please be nice." What in God's name were those things called? The beginning of 24 accessability, and the precursor to the BlackBerry. If you can remember what they are called please send me a message with the *411.