Security system for terminating fraudulent telephone calls

Details Security system for terminating fraudulent telephone calls Security system for terminating fraudulent telephone calls

1993-12-29

1995-10-31

Hofsass, Jeffery A.

Telephonic communications

Call or terminal access alarm or control

Fraud or improper use mitigating or indication

379218, 379 34, 379145, 379 95, H04M 166

Patent

active

054636817

ABSTRACT:
A fraud detection apparatus receives a telephone call including area and national numbers from a switch and determines when the telephone call is fraudulent. The fraud detection apparatus includes a switching processor capable of receiving the area code and national numbers from a local telephone switch. The switching processor may also have the capability of storing potential fraudulent call information, such as area codes, billing numbers and domestic or international directory numbers. The processor determines the telephone call to be fraudulent when any or a combination of the above numbers matches one of the potential fraudulent numbers stored in its memory.

REFERENCES:
patent: 4893330 (1990-01-01), Franco
patent: 4931933 (1990-06-01), Chen et al.
patent: 5068891 (1991-11-01), Marshall
patent: 5181238 (1993-01-01), Medamana et al.
patent: 5274698 (1993-12-01), Jang
patent: 5276444 (1994-01-01), McNair
patent: 5317627 (1994-05-01), Richardson, Jr. et al.
patent: 5323448 (1994-06-01), Biggs

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