Abstract: Subscribers of a telephone service can define a calling circle, which includes a group of other telephone subscribers with whom the subscriber receives preferential billing rates. The members of the calling circle may include customers of a telephone service provider other than the subscriber's telephone service provider.

Abstract: Subscribers of a telephone service can define a calling circle, which includes a group of other telephone subscribers with whom the subscriber receives preferential billing rates. The members of the calling circle may include customers of a telephone service provider other than the subscriber's telephone service provider.

Abstract: Subscribers of a communication service may select from a number of bundled service plans, wherein a recurring charge is paid from prepaid accounts by the subscribers in exchange for a bundled package of services. The plans may further require subscribers to add a value to their prepaid accounts with a minimum frequency. If a subscriber fails to add value to the account within the required time period, the subscriber is automatically migrated to a different plan that includes fewer or no bundled services and may charge more per use of the services. If the subscriber subsequently adds sufficient funds to the account to satisfy the periodic payment requirement, the subscriber may be re-enrolled in that originally selected bundled service plan.

Abstract: Subscribers of a telephone service can define a calling circle, which includes a group of other telephone subscribers with whom the subscriber receives preferential billing rates. The members of the calling circle may include customers of a telephone service provider other than the subscriber's telephone service provider.