Telecommunications – Radiotelephone system – Security or fraud prevention
Patent
1997-07-07
1999-12-28
Chin, Wellington
Telecommunications
Radiotelephone system
Security or fraud prevention
455414, 455433, 379211, 379133, H04Q 734
Patent
active
060093218
ABSTRACT:
A system and method for tracing calls, such as those terminating in a wireless telephone system, is disclosed. The system is part of a communication network that uses a switch connected to a caller. The switch extracts information about the caller such as a calling party number and other information useful for tracing the call. Once the information has been extracted, the switch sends the information to a storage device associated with the called party, such as a home location register. The storage device creates a log of the call, storing all the extracted information. When the call is to be traced, a device capable of accessing the storage device can easily retrieve the stored information and thereby identify and locate the caller.
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Hemmer Maria
Idrissi Yahya
Wang Jin
Wilding David
Chin Wellington
Jama Isaak R.
Northern Telecom Limited
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