ABSTRACT
There's more coming out your phone line than the voice of the caller. You also get valuable data telling you the number of the calling party. Your database can turn that number into gold.
Here is a wonderful small call center application: an airport cab company writes down the number of every pay phone in the vicinity of the terminals at Phoenix airport. When a traveler gets off the plane and calls for a taxi, the dispatcher knows exactly where that caller is standing. And he knows the route to the nearest taxi stand.
