Question: In MCPTT media plane control interworking with LMR systems, when an IWF floor participant with overriding pre-emptive floor priority is granted the floor, what action does the IWF floor control server take regarding state transition after determining the SSRC?
Option 1: Enter the state 'A: Idle' to await further instructions.
Option 2: Enter the state 'D: Floor Taken' as part of the dual floor control operation.
Option 3: Initiate a 'Floor Release' state to clear previous grants.
Option 4: Transition to a 'Pending' state for additional priority checks.
Explanation: When an IWF floor participant with overriding pre-emptive priority is granted the floor, the IWF floor control server's logical step after determining and storing the SSRC is to secure the floor for that participant. Entering the 'D: Floor Taken' state reflects this, as it signifies that the floor has been successfully taken by the prioritized participant, ensuring uninterrupted communication in critical scenarios. This action aligns with the necessity for seamless and controlled media exchange in Mission Critical Push To Talk (MCPTT) operations.