System and method for detection of redial fraud in a cellular telephone system
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United States of America Patent
Stats
-
Jul 13, 1999
Grant Date -
N/A
app pub date -
Oct 25, 1996
filing date -
Oct 25, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system analyzes telephone calls that have been determined by signature analysis to be fraudulent and stores parameter data associated with the fraudulent cell phone. During subsequent cell phone calls, the system compares the stored parameter data associated with the fraudulent cell phone to corresponding parameters from a subsequent call to determine whether the subsequent call is from the fraudulent cellular telephone. In this manner, the system may reject subsequent cellular telephone calls as fraudulent without the need for time consuming signature analysis. Parameters analyzed by the system can include the time of day of the fraudulent call, the origin from which the fraudulent call was placed, the transmitted identification numbers of the fraudulent telephone, and the destination telephone number of the fraudulent call. The system can analyze one or more of these parameters in combination to determine that the subsequent call is fraudulent.
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