Question: Upon expiry of Timer T2 (Stop talking) in an MCPTT (Mission Critical Push To Talk) scenario, what action does the IWF (Interworking Function) floor control server take regarding Timer T1 (End of RTP media) for the affected MCPTT participant?
Option 1: Resets Timer T1 to its initial value for the MCPTT participant.
Option 2: Stops Timer T1 for the MCPTT participant for which Timer T2 has expired.
Option 3: Triggers an immediate expiration of Timer T1, forcing a media halt.
Option 4: Ignores Timer T1's state, focusing solely on Floor Revoke message transmission.
Explanation: Upon Timer T2 (Stop talking) expiry, the IWF floor control server stops Timer T1 (End of RTP media) for the MCPTT participant. This action is part of managing and controlling the media flow efficiently, ensuring that once a "stop talking" signal is acknowledged (via Timer T2's expiration), associated media timers (like Timer T1) are halted to prevent further unnecessary media transmission or expectation of such. This highlights the server's role in coordinating and terminating media sessions based on predefined timing rules in MCPTT scenarios.