Apparatus and method for operating a cellular or portable teleph

Details Apparatus and method for operating a cellular or portable teleph Apparatus and method for operating a cellular or portable teleph

1998-04-08

2000-09-26

Hunter, Daniel S.

Telecommunications

Radiotelephone system

Security or fraud prevention

455413, H04Q 722

Patent

active

061252735

ABSTRACT:
A technique for activating a cellular or portable telephone includes a circuit for transmitting and receiving signals, a controller for the transmitting and receiving circuit, and a display device, e.g., liquid crystal display. A service program stored in a memory is accessible through a first code and a second code. The first code permits access to portions of the service program, and the second code permits access to fewer portions of the service program. The second code is generated based upon data associated with the telephone, e.g., a serial number and/or the first code. The service program is prevented from being accessed through the second code after the second code is used once. The portions of the service program that are accessible through the second code may be a subset of the portions of the service program that are accessible through the first code, and the portions of the service program that are accessible through the second code may include a routine for storing or setting the telephone number assigned to the apparatus.

REFERENCES:
patent: 5301223 (1994-04-01), Amadon et al.
patent: 5485505 (1996-01-01), Norman et al.
patent: 5878339 (1999-03-01), Zicker et al.
patent: 5887250 (1999-03-01), Shah

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