A method of controlling a floor controller (14) of a communications network (8) including a group of network components (14, 16) which receive a data stream (12) from a data source (10) is described. The method comprises the steps of selecting the network component (14, 16) which is to control the data source (10), receiving a control instruction from at least one of the network components (16), the control instruction relating to a control of the data source (10), and, in response to receipt of the control instruction from the selected network component (16), triggering the transmission of a corresponding session control command to the data source (10).