Communication system capable of using a plurality of subscriber

Details Communication system capable of using a plurality of subscriber Communication system capable of using a plurality of subscriber

1995-11-07

1998-06-09

Cumming, William

Telecommunications

Radiotelephone system

Security or fraud prevention

H04M 1100

Patent

active

057651051

ABSTRACT:
In a communication system, a plurality of subscriber identity modules implemented as cards and to be mounted to mobile stations (MSs) share a single international mobile subscriber identity (IMSI). When any one of the MSs generates an authentication and registration request, a mobile services switching center (MSC) at a home station writes information representative of the combination of the identity IMSI and an international mobile equipment identity IMEI attached to the mobile station in a home location register. When any one of the MSs generates a call origination request or when a call termination request meant for any one of them is generated, the MSC at a home station or an MSC at a roamer station provides the requested service only if combination information relating to the mobile station is stored in the home location register or a visitor location register.

REFERENCES:
patent: 5337345 (1994-08-01), Cassidy et al.
patent: 5537474 (1996-07-01), Brown et al.
"Network Architecture", Recommendation GSM 03.02, 17 pp. 1-17, Released by: ETSI/PT 12, Release Date: Jan. 1990.

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