Process to control a subscriber identity module (SIM) in mobile phone system
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United States of America Patent
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-
Feb 10, 2004
Grant Date -
N/A
app pub date -
Apr 11, 2000
filing date -
May 26, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process to control a subscriber identity module (SIM) in mobile phone systems. The process consists of the mobile phone network sending one or more specific control values to the subscriber identity module that initiate specific actions or procedures within the subscriber identity module. Certain random values sent by the mobile phone network to the subscriber identity module for regular authentication purposes are used as control values (Control RANDs).
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