Patent ID: 8073432

Claim:
A method comprising: defining binding data which associates a user data identifier identifying a user data unit with an identifier for identifying at least one function of a first communications device; performing a first synchronization step between the first communications device and a second communications device, the step comprising transferring the user data unit from the first communications device to the second communications device; performing a second synchronization step between the first communications device and the second communications device in response to the performance of the first synchronization step, the second step comprising transferring the binding data from the first communications device to the second communications device, wherein the second communications device is a mobile communications device or a synchronization server configured to synchronize the binding data to a mobile communications device to form binding in the mobile communications device in accordance with the binding data, and the first communications device checks whether the second communications device supports binding data synchronization and transmits the binding data to the second communications device in the second synchronization step in response to the fact that the second communications device supports binding data synchronization on the basis of the check.