Patent ID: 8670539

Claim:
A delegate unit for a conference system, the delegate unit having at least one state, the at least one state including a possible-to-speak status of a microphone state, the delegate unit comprising a microphone, the microphone configured to be activated in response to a user activation only when the delegate unit is in the possible-to-speak status of the microphone state; a signal means including a possible-to-speak indicator operable to indicate the possible-to-speak status of the microphone, wherein in one state the possible-to-speak indicator is deactivated, while the microphone is not available for the user and in a second state the possible-to-speak indicator is activated, while the microphone is available; and an interface adapted to retrieve, to receive, or to retrieve and receive possible-to-speak information from the conference system, whereby the delegate unit is operable to activate the possible-to-speak indicator and change the state of the delegate unit on the basis of the said information.