Patent ID: 7248895

Claim:
A mobile telecommunications apparatus to be initialized with settings for use with one of a plurality of different operator networks for a subscriber thereto, comprising: a memory pre-loaded with data comprising a plurality of variant packs configured to control the settings of the apparatus for use with individual ones of the networks, a receptor configured to receive a subscriber identity device that carries network identity data corresponding to the network to be used by the subscriber, and a processor configured to perform an initialization procedure when said subscriber identity device is fitted to the receptor, to select at least one of the variant packs in dependence upon the network identity data from the subscriber identity device, and to set the settings of the apparatus in accordance with the data from the selected one of the variant packs, wherein each of the variant packs include pack identity data corresponding to the network to which the pack relates, and the processor is further configured to determine the network identity data from the subscriber identity device and compare the network identity data with the pack identity data to determine which of the packs contain settings corresponding to the network for the subscriber.