Abstract: A conference device includes a physical control button having multiple underlying pressure zones; a configuration unit, adapted to visualize a number of active functions on and/or around the control button based on a chosen usage application, wherein the number is at most equal to the number of the underlying pressure zones; a control unit adapted to control one or multiple components on the conference device. The pressing of the control button at the position of one of the pressure zones results in a control which depends on the chosen usage application.

Abstract: A central unit for a digital conferencing system comprises a processing unit arranged for receiving a plurality of first control signals from a plurality of interpreter desks and indicating which interpreter channel is selected on an interpreter desk, and for identifying, based on the first control signals, which interpreter is interpreting in which interpreter channel and arranged for returning to and displaying on the plurality of interpreter desks a plurality of feedback signals. The central unit is arranged for receiving a plurality of second control signals from a plurality of listening units, and indicating which audio channel on a listening unit of the plurality of listening units is selected, for deriving, based on the plurality of second control signals, a total of listeners per listening channel and for sending to and displaying on the plurality of interpreter desks, information on the total of listeners per listening channel.

Abstract: A central unit for a digital conferencing system comprises a processing unit arranged for receiving a plurality of first control signals from a plurality of interpreter desks and indicating which interpreter channel is selected on an interpreter desk, and for identifying, based on the first control signals, which interpreter is interpreting in which interpreter channel and arranged for returning to and displaying on the plurality of interpreter desks a plurality of feedback signals. The central unit is arranged for receiving a plurality of second control signals from a plurality of listening units, and indicating which audio channel on a listening unit of the plurality of listening units is selected, for deriving, based on the plurality of second control signals, a total of listeners per listening channel and for sending to and displaying on the plurality of interpreter desks, information on the total of listeners per listening channel.