System and method for group session communication

The present invention is directed to a system and method for distributing voice data information as presence information to all members participating in the group session communication when the presence status of participants has changed. A call control server accepts a request from one of group members for joining or exiting the group session communication, and transmits the information on the member to a media control server. The media control server receives the information and extracts media data, from a memory means, corresponding to the received information, and distributes the extracted media data, as voice data, to all participants of the group session communication.