US Patent 7764952 Distribution of audio content using mobile telecommunication devices

The invention relates to a media system and a method for providing a messaging service. One example media system includes a database containing digital media files, each digital media file associated with one or more categories. A subscription service receives and records subscription requests from subscribers, where each subscription request relates to one of the categories. A receiving module receives a new digital media file from a subscriber, wherein the identifier identifies the one or more categories with which the new digital media file is to be associated. A transmission module provides the new digital media file to the subscribers of the category that is associated with the new digital media file.