| 摘要 |
<p>A communications network has a switching network including a mobile switching centre (MSC 10) which communicates, e.g. by radio telephony, with mobile equipment (ME 12), such as a mobile telephone. The mobile equipment contains a subscriber identity module (SIM 20) which stores data for controlling the operation of, and the facilities available to the user, of the mobile equipment (12). In accordance with the present invention, the switching network transmits updating signals to the mobile equipment (12) which alter the data stored in the subscriber identity module (20), and hence alter the operation on facilities available. <IMAGE></p> |
