Patent ID: 7245905

Claim:
A method for operating a telematics unit within a mobile vehicle communication system, the method comprising: assigning a primary telematics unit identifier to a user account; assigning the primary telematics unit identifier to a mobile handset; associating the mobile handset with any one of a plurality of telematics units operating within the mobile vehicle communication system; and operating the associated telematics unit; wherein the step of associating the mobile handset with any one of a plurality of telematics units operating within the mobile vehicle communication system comprises: coupling the mobile handset to the telematics unit; determining if the telematics unit coupled to the mobile handset is a primary telematics unit, the primary telematics unit including the primary telematics unit identifier; determining if the telematics unit coupled to the mobile handset is a secondary telematics unit, the secondary telematics unit not including the primary telematics unit identifier; and routing calls to the determined telematics unit.