A communication system includes a local communication device that communicates with a remote communication device via a wired or wireless communication link between the devices. The local communication device and the remote communication device are each capable of switching between a multiple user mode and a single user private mode in response to a mode change request. The local and remote communication devices include respective profiles that include profile attributes that define how the respective communication device responds to a mode change request. A user of one communication device may send a mode change request to the other communication device. In response to the mode change request, the other communication device changes mode between multiple participant mode and single participant mode if the profile of that communication device permits the mode change.