METHODS, DEVICES, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR PROVIDING AVAILABILITY DATA ASSOCIATED WITH DATA FILES TO USERS OF A PRESENCE SERVICE

摘要

Methods, devices, systems and computer program products for providing availability data are provided. Availability data associated with a data file stored at a first client device is provided to a presence server. The presence server is configured to provide the availability data to at least one subscriber of a presence service provided by the presence server and to alter an availability indicator associated with the data file on a display of at least one second client device associated with the at least one subscriber.