Method and system for detection of fraudulent cellular telephone

Details Method and system for detection of fraudulent cellular telephone Method and system for detection of fraudulent cellular telephone

1996-05-02

1998-10-13

Cunning, William

Telecommunications

Radiotelephone system

Security or fraud prevention

455411, H04Q 700, H04Q 738

Patent

active

058226915

ABSTRACT:
A system to detect the use of stolen mobile identification number (MIN) and electronic serial number (ESN) information to fraudulently place wireless calls by comparing the last phone number connected (LNC) as recorded by the radio telephone network with the last phone number connected as recorded in the mobile radio telephone unit. The mobile radio telephone unit LNC is transmitted to the base station upon initiation of a radio telephone call for comparison with the LNC recorded by the radio telephone network. The network will detect if a MIN/ESN combination is in use by two different mobile units because the LNC of the two mobile units will be different due to the different phone numbers called by each user.

REFERENCES:
patent: 5420908 (1995-05-01), Hodges et al.
patent: 5457737 (1995-10-01), Wen
patent: 5734978 (1998-03-01), Hayatake et al.

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