Prepaid security cellular telecommunications system

Telecommunications – Radiotelephone system – Usage measurement

Patent

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Details

455406, 455405, 379112, 379114, 379127, 379128, H04Q 700, H04M 1500

Patent

active

058549757

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 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 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 pre-paid cards.

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