摘要 |
<p>Portable telecommunications apparatus having one or more functionalities including providing user access to a telecommunications network, the portable telecommunications apparatus comprising integrated circuit card (ICC) reader circuitry, storage circuitry and processing circuitry, wherein the ICC reader circuitry is configured to communicate with one or more network-access ICCs; the storage circuitry is arranged to comprise a list of at least one network-access ICC authorised for use with the apparatus; and wherein the processing circuitry is arranged to undertake an authentication process on removable storage circuitry in communication with the apparatus to determine whether or not the security circuitry is authenticated for use with the apparatus; to allow the authorisation of network- access ICCs in the storage circuitry according to whether authenticated security circuitry is in communication with the apparatus; and to permit a user access to the one or more functionalities of the apparatus according to whether an authorised network-access ICC is in communication with the ICC reader circuitry.</p> |