Flexible floor control policies

Conferences come in all shapes and sizes. For some, no floor control, with everyone sending audio when they wish, and sending video continuously is fine. For others, this is not satisfactory due to insufficient available bandwidth or a number of other reasons. It should be possible to provide floor control functionality, but the providers of audio, video and workspace applications should not specify which policy is to be used. Many different floor control policies can be envisaged. A few example scenarios are: