US Patent 7035731 Threshold-based service notification system and method

A notification server (100) is coupled to a database (102). The database (102) includes information relating to a user service and a threshold for notifying the user of the availability of the service. The threshold is based upon a then current location of the user and an availability of the service relative to the then current location of the user. The notification server (100) is operable to generate an alert based upon the user service, the then current location of the user and the threshold and to communicate the alert to the user via a communication interface (104).