Lucent Technologies Inc.

Charles C Teising

Sharat Subramaniyam Chander

Michael Dwayne Chambers

Tony Tuong Nguyen

Chee Keong Lee

Jan Oudelaar

A system is provided for securely registering a new user's personal mobility information in a communications terminal having existing registrations. The terminal owner provides information needed to verify the owner's identity and authorizes registration of a specific new user identified by the new user's IMSI. The new user also provides information needed to verify the new user's identity, and requests the registration. A user identity module verifies the identity information provided by the terminal owner and new user, and through intermediaries including a serving system, negotiates with the new user's home system (home location register) to obtain subscription information and appropriate security information for the new user to permit system access. Registration is accomplished by storing this information in the user identity module. Advantageously, all negotiation occurs over the normal interface by which the terminal communicates with the serving system, and the serving system and home system need not be of the same family. The new registration may supplement or supersede one or more existing registrations.

Personal mobility registration system for registration of a user's identity in a telecommunications terminal

Apparatus and a method for providing international numbers in order to implement international cellular roamer service. When a roamer registers, the Visitor Location Register (VLR) serving the roamer, queries the Home Location Register (HLR) record of the roamer. The HLR tests whether the VLR is in a foreign country. If so, the HLR provides numerical information, such as the roamer's billing number, in international form, including the country code of the HLR. Advantageously, the VLR is provided with international numbers where appropriate, and the roamer can be accommodated outside the roamer's home country.

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Naperville, IL, United States of America

Charles C Teising