ANNOUNCED SESSION DESCRIPTION

摘要

The invention provides a method of announcing a description of a media session, for example a multimedia conference. In one respect, the invention provides a modular method of announcing media sessions. This method comprises the steps of generating a first base module (410) having a first data structure comprising user oriented data relevant to the media session; generating at least one media module (421, 422, 423) having a second data structure comprising media oriented data necessary for a user to receive a respective media stream of the media session; providing a link between the first base module and the at least one media module; and, announcing the media session by making at least the first base module available to potential recipients of the media session, wherein the link between the first base module and the at lest one media module permits a user to access the at least one media module and subsequently receive the media stream.