Process for operating a mobile radiotelephone system utilizing subscriber indentification modules

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United States of America Patent

PATENT NO 5819176
SERIAL NO

08557090

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Abstract

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In a process for operating a mobile radiotelephone system in which mobile stations are actuated with the aid of an identification number transmitted from the mobile station concerned to an active system in that, after the identification number has been checked in the active system in a data set which contains at least the identification number and a call number allocated thereto, a status field is set to 'active', and in which, on the receipt of a request for connection with a call number the active system checks whether that call number is active, in which, if there is a match, a connection is made using the call number, the data set contains a reference to a further data set which contains a further identification number, a further call number, a further status field and a reference to the data set. When a request for connection to the call number is received, if the latter is not active, a connection is made using the further data set if it is active.

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Patent Owner(s)

Patent OwnerAddress
T-MOBILE DEUTSCHLAND GMBHBONN GERMANY BONN NORTH RHINE-WESTPHALIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rast, Corinna Bonn, DE 1 12

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