Question: Upon entering the 'U pending Floor Revoke' state, what action does the IWF (Interworking Function) floor control server initiate towards the MCPTT (Mission Critical Push To Talk) client, in addition to state transition?
Option 1: Stops timer T7 (Floor Request)
Option 2: Sends a Floor Grant confirmation
Option 3: Starts timer T8 (Floor Revoke)
Option 4: Enters the 'Idle' state
Explanation: When transitioning into the 'U pending Floor Revoke' state, one of the specified actions for the IWF floor control server is to initiate a timer specifically related to the revocation process. Starting timer T8 (Floor Revoke) is directly linked to managing the floor revoke process efficiently, ensuring timely handling of floor control changes in MCPTT communications interworking with LMR systems. This action is crucial for maintaining orderly communication sessions.