Patent ID: 6490463
Filing Date: 2002-12-03
Classification: H04L,H04W

Abstract:
A method for the parametrization of a mobile telephone wherein:program representing use functions of this mobile telephone are loaded into a memory of this mobile telephone, the mobile telephone is provided with a first removable security circuit, information encoded in the security circuit is compared with operating information, and the operation of the mobile telephone is authorized as a function of this comparison, wherein: the programs are distributed between at least two groups respectively corresponding to basic functions and comfort functions, a first mobile telephony operator code established by a mobile telephone subscription provider is stored in the security circuit, a second mobile telephony operator code established by a mobile telephone subscription provider and a code authorizing the use of the function is stored in a memory of the mobile telephone, the first and second operator codes are compared, and the implementation of the comfort functions is authorized as a function of this comparison, whether positive or not, between the first and second mobile telephone operator codes, the number of comfort functions authorized is less when the mobile telephone subscription provider that establishes said first mobile telephony operator code is an entity different from the mobile telephone subscription provider that establishes said second mobile telephone operator code than when the mobile telephone subscription provider that establishes said first mobile telephone operator code is the same entity as the mobile subscription provider that establishes said second mobile telephone operator code.