Accounting system in a communication network

摘要

A communication system includes a communication utilizing apparatus connectable to a communications network and service provision apparatus for making services available to the communications utilizing apparatus. An accounting device is associated with the communications utilizing apparatus and includes a digital data storage device arranged to store details of the receipt of services by the communications utilizing apparatus a signalling circuit arranged to receive, via the communications network, signals indicating a payment due in respect of services provided by the service provision apparatus, and a comparison device arranged to compare the received indications with data derived from the stored details.