Concepts and technologies are described herein for a mechanism by which participants who have been invited to attend a conference event and who are physically present within a conference event environment, such as a meeting room, can provide authentication credentials to join the conference event via a conference event environment system. When an individual attempts to join a conference event via a conference event environment system, the individual is prompted to provide his or her authentication credentials to join the conference event via the conference event environment system to participate in the conference event. The conference event environment system may inherit the individual's permissions, such as in regards to whether or not the individual has been permitted to present content during the conference event. A conference event roster may be used to indicate that the individual has joined the conference via the conference event environment system.
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