Method and apparatus for exchanging RF signatures between cellular telephone systems
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United States of America Patent
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Feb 8, 2000
Grant Date -
N/A
app pub date -
Nov 18, 1996
filing date -
Dec 22, 1995
priority date (Note) -
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Abstract
A method for reducing roaming fraud in mobile phone systems includes the exchange of an RF signature of a roaming mobile phone between the foreign and home service areas. Thereafter, the analysis of the RF signature can be performed either at the foreign or home service area.
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