Method of controlling sharing of participant identity in a group communication session

A system and methods for increasing the granularity of privacy control in a group communication session are presented. A privacy rule is established for a participant in the session. The privacy rule specifies for different identity sharing triggers whether the participant identity is to be shared with other participants in the session. The privacy of the participant is able to be different dependent on the particular identity sharing trigger. The privacy rule is set by participant initiating the session, a separate server, or the participant. In the last case, the participant is able to specify privacy for a media or data stream when requesting the floor to transmit the stream. The identity of the participant is automatically modified dependent on session context information.