Security cellular telecommunications system
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United States of America Patent
Stats
-
Feb 24, 1998
Grant Date -
N/A
app pub date -
Dec 23, 1994
filing date -
Dec 23, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cellular telecommunications system having a security feature which allows only pre-authorized users no complete cellular telephone calls. The system and method recognizes a cellular radiotelephone's pre-programmed a pre-selected telephone number and a automated number identification code (ANI). The pre-selected telephone number is reserved to the pre-paid cellular telecommunications system. The cellular radiotelephone transmits the ANI and a dialed number identification system code (DNIS) to a cellular switch, which contacts a host computer for call validation the pre-paid service provider.
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