Discussion devices are connected in a daisy-chain configuration to the control unit of a CCS 1000 digital discussion system. Their plug-and-play functionality allows them to be conveniently connected to and removed from the system as required. A power down or restart of the system is not necessary, which ensures fast installation and reconfiguration times. Participants can take part in a discussion by speaking into the microphone and listening to proceedings through the built-in loudspeaker or optional headphones.