A billing system is disclosed which performs processing in order to provide service to user terminals, and which performs billing for the service provided to the user terminals. In this billing system, user billing profiles UBP are stored in a user billing profile registration unit, by service type and...http://www.google.com/patents/US20020188562?utm_source=gb-gplus-sharePatent US20020188562 - Billing system, and device constituting same
