- set the bbbuser status to not talking when she leaves the voice conference
 - have the webcam standlaone apps call to the JS shell to inform external JS apps that it is ready
   When the SWF files is loading and starting up, the 3rd-party application maybe sending the SWF apps
   events/commands to start/stop webcam. However, these events may be lost because the SWF file isn't
   yet ready to handle the events.