Mobile communication system which prohibits service to a mobile

Details Mobile communication system which prohibits service to a mobile Mobile communication system which prohibits service to a mobile

1997-01-21

1998-05-12

Cumming, William

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455406, 455407, 455408, 455422, 455410, 455411, 379114, H04Q 720, H04Q 722

Patent

active

057521891

ABSTRACT:
A mobile communication system intended to early detect unlawful mobile station. User information about accumulated call account is totaled by the network and the mobile station individually so as to be subjected to a comparison to found an unlawful mobile station.

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patent: 5321735 (1994-06-01), Breeden et al.
patent: 5418839 (1995-05-01), Knuth et al.
patent: 5438608 (1995-08-01), Kojima
patent: 5448760 (1995-09-01), Frederick

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