Patent ID: 7483521

Claim:
A telephone network comprising: a home mobile switch center and a serving mobile switch center for providing services to telephone subscribers; a database, including: a flrst file comprising telephone numbers and classes of service assigned to the telephone numbers, wherein a first class of service is assigned to a first group of the telephone numbers, and a second class of service is assigned to a second group of the telephone numbers; and a second file comprising the classes of service and call types assigned to the classes of service, wherein a first plurality of call types are assigned to the first class of service, a second plurality of call types are assigned to the second class of service, and the first plurality of class types has at least one call type different from the call types of the second plurality of call types; and a wireless network providing communication protocols for the home mobile switch center, the serving mobile switch center, and the database to communicate with one another, wherein upon a telephone connection of a selected telephone number of the first and second groups of the telephone numbers, the first file is configured to be used to determine the class of service assigned to the selected telephone number and, based on the determined class of service assigned to the selected telephone number, the second file is configured to be used to make an announcement to a telephone subscriber.