Prepaid security cellular telecommunications system
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United States of America Patent
Stats
-
May 22, 2001
Grant Date -
N/A
app pub date -
Jul 17, 1998
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 to complete cellular telephone calls. The system and method recognizes a cellular radiotelephone's pre-programmed and pre-selected telephone number and an automated number identification code (ANI). The pre-selected telephone number is reserved to the prepaid 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 by the pre-paid service provider. This system also allows pre-authorized users to receive and pay for incoming calls as well as purchase additional air time and monthly access fees with convenient prepaid cards.
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