Patent ID: 7546119

Claim:
A system of changing an operation parameter of a communication terminal, the system comprising: a user database adapted to store upgrade state information for an operation parameter of the communication terminal, and when version information for the communication terminal corresponds with an old operation parameter, adapted to transmit a new operation parameter to the communication terminal in dependence upon information indicative of the new operation parameter stored in the user database; and an upgrade server that, when the version information for the communication terminal corresponds with the new operation parameter in conformance with the information indicative of the new operation parameter stored in the user database, determines, by reference to a database different from the user database, whether the communication terminal having the new operation parameter needs to be upgraded by an upgraded operation parameter, and provides the upgraded operation parameter information in dependence upon information indicative of the upgraded operation parameter stored in the database to the communication terminal upon a determination that the communication terminal having the new operation parameter needs to be upgraded with the ungraded operation parameter information.