Telecommunications – Radiotelephone system – Security or fraud prevention
Patent
1996-10-25
1999-10-19
Wolfe, Willis R.
Telecommunications
Radiotelephone system
Security or fraud prevention
455433, 455456, 455561, H04M 1100
Patent
active
059704047
ABSTRACT:
A system and method for detecting a fraudulent call origination in a radio telecommunications network having a subscriber's home Home Location Register (HLR) for storing a stored location for a mobile station, a serving Mobile Switching Center (MSC) in which the call origination is initiated, and a MSC-Location (MSC-L) covering the location for the mobile station stored in the home HLR. The serving MSC sends a reporting message to the home HLR when a call is originated from the mobile station in the serving MSC. The reporting message indicates a reported location for the mobile station. The home HLR then sends paging request messages to the serving MSC and the MSC-L requesting the serving MSC to page the mobile station in the reported location and requesting the MSC-L to page the mobile station in the stored location. Each MSC pages the mobile station and sends a paging result to the home HLR. The home HLR compares the stored location to the reported location, and analyzes the locations and the paging results to determine whether the call origination is fraudulent. If the call origination is determined to be fraudulent, the call is disconnected, and the mobile station is barred from originating calls until a proper personal identification number (PIN) code is entered.
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Smith Steven W.
Telefonaktiebolaget LM Ericsson
Vo Hieu T.
Wolfe Willis R.
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