What does the floor control arbitration logic in the IWF floor control server do upon receiving a floor request message with effective priority indicating pre-emptive priority?
Revoke the current speaker and enter the 'G: pending Floor Revoke' state.
Allow media from both the current speaker and from the participant now requesting floor with a pre-emptive floor priority.
Send a Floor Queue Position Info message to the requesting MCPTT floor participant.
Select a queued floor request from the top of the active floor request queue.
Send a Floor Granted message to the previously granted MCPTT floor participant.