Mobile address management and billing for personal communications

Use of a `location authority´ and a separate `billing authority´ for personal identification numbers (PIDs) is proposed to exploit the existing telephone infrastructure. A mobile PID has no inherent location or routing information. A `location authority´ is responsible for tracking the PID´s current location and detecting duplicate PID usage. A `billing authority´ operates like a credit card company, offering on-line credit and service profile verification. A PID could have several `billing authorities´ responsible for maintaining the users service profile and guaranteeing payment to service providers. The author examines transactions, database requirements, and billing for log-in and call set-up under the proposed concept