Combination electronic road guidance and communication system for vehicles
Mobile radio communication system
Telephone communications system with portable handsets
Cellular mobile radio credit card system
Radiotelephone credit card data communications
Telephone registration and cancellation control in a wide area cordless telephone system
Radiotelephone credit card call approval synchronization
ApplicationNo. 934308 filed on 08/25/1992
US Classes:455/409, Rental379/88.24, By generated tone379/114.19, Credit card455/331, Crystal or electron tube diode455/435.1Registration
ExaminersPrimary: Chan, Wing F.
Assistant: Cumming, William
Attorney, Agent or Firm
Foreign Patent References
International ClassesH04M 011/00
AbstractMethod and apparatus for use in a mobile telephone rental system in which credit card information is communicated between the mobile telephone unit 100 and a Voice Response System 302 for customer registration and remote programming of mobile telephone unit 100 features and NAM settings; communicating data between the Voice Response System 302 and a Registration System 304 for customer credit card validation; communicating data between the Registration System 304 and a credit card clearinghouse 306 for credit card approval or decline; communicating data between the Registration System 304 and a plurality of Collector Systems 307 for call rating and billing; communicating data between the Registration System 304 and an Administration System 309 for providing rated call information to the reseller; and communicating data between the mobile telephone unit 100 and an Indirect System 303 for establishing service in cellular areas without Collector System 307 service. Data read from the mobile telephone units 100 are transmitted in variable length, encrypted and error protected Packet Data Units (PDUs).
Field of SearchAt subscriber station