Lucent Technologies Inc.

Jan Oudelaar

Sharat Subramaniyam Chander

Charles C Teising

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.

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Huizen, Netherlands

Jan Oudelaar