Use of an audit message sent to mobile stations to confirm the l

Details Use of an audit message sent to mobile stations to confirm the l Use of an audit message sent to mobile stations to confirm the l

1990-02-26

1993-09-21

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 341, 455 561, 379 59, H04Q 700

Patent

active

052476987

ABSTRACT:
A mobile communications system includes at least one subscriber; a home exchange for the at least one subscriber; at least two exchanges, which may include the home exchange, that may be accessed by the at least one subscriber; and means for ensuring that the at least one subscriber has registered as being located within only one of the at least two exchanges. A method according to the teachings of the present invention includes the steps of cancelling all but the last registration when more than one registration is effected and correctly reestablishing mobile station registration and location data by sending an audit message from the exchanges in which a registration was cancelled to a mobile when the registration was cancelled within a predetermined period of time after being established.

REFERENCES:
patent: 4178476 (1979-12-01), Frost
patent: 4700374 (1987-10-01), Bini
patent: 4723266 (1988-02-01), Perry
patent: 4737978 (1988-04-01), Burke et al.
patent: 4775999 (1988-10-01), Williams
patent: 4833701 (1989-05-01), Comroe et al.
patent: 4833702 (1989-05-01), Shitara et al.
patent: 4843622 (1989-06-01), Yotsutani et al.
patent: 5054110 (1991-10-01), Comroe et al.

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