Exchange which extends SIM based authentication and method there

Details Exchange which extends SIM based authentication and method there Exchange which extends SIM based authentication and method there

1997-09-29

1999-12-14

Bost, Dwayne D.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455411, 455558, 455410, H04M 1100, H04Q 732

Patent

active

060029293

ABSTRACT:
An on-board aircraft telecommunication exchange (32) provides communication and authentication services for M subscriber identity modules (SIMs) using N transceivers (36), where M can be greater than N. Associations between SIMs (56) and transceivers (36) are established when needed. Accordingly, a pool of transceivers 36 is provided to serve the collective needs of many subscribers. A SIM-based authentication process is performed (100) using a subscriber's original SIM (56). That authentication can be extended to a temporary SIM (106) that is substituted for the original SIM throughout the remainder of a flight. Alternatively, the original SIMs (56) may be locked in place and relinquished when a subscriber provides an appropriate PIN.

REFERENCES:
patent: 4811377 (1989-03-01), Krolopp et al.
patent: 5438610 (1995-08-01), Bhagat et al.
patent: 5497411 (1996-03-01), Pellerin
patent: 5519761 (1996-05-01), Gilhousen
patent: 5765105 (1998-06-01), Kuriki
patent: 5819176 (1998-10-01), Rast
patent: 5875404 (1999-02-01), Messiet

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