Patent ID: 7146165

Claim:
A system for file management in a mobile network, comprising: a first mobile communication device or an access control system of a first user in communication with a central database, the central database having contact information related to EF ADN files of subscriber identity modules (SIMs); means for sending an update request to the central database to update contact information of the first mobile communication device stored in the central database, the contact information containing a name and additional status information of the first user; the central data base having routing information to a second mobile communication of a second user; means for conveying updated contact information from the central data base to the second mobile communication device, the updated contact information containing the name and updated additional status information; means for using the updated contact information to update an EF ADN file of a subscriber identity module (SIM) of the second mobile communication device, the EF ADN file being associated with the first user and containing an alpha identifier field and a dialing number field, the dialing number field containing a dialing number to the first mobile communication device of the first user, the alpha identifier field containing the name and additional status information of the first user; means for updating the alpha identifier field to change the additional status information to contain the updated additional status information; and the second communication device having means for showing the name and the updated additional status information of the first user when the name of the first user is selected from the subscriber identity module (SIM) of the second mobile communication device.