Question: In an MCPTT system, when an Interworking Function (IWF) sends a Floor Release message towards the floor control server for a broadcast call established as a normal call, what is the specific indicator setting requirement?
Option 1: The A-bit in the Floor Indicator must be set to '0' (Broadcast Call)
Option 2: The G-bit in the Floor Indicator must be set to '1' (Dual floor) regardless of the initial Floor Granted message
Option 3: The A-bit in the Floor Indicator must be set to '1' (Normal call)
Option 4: No specific bit setting in the Floor Indicator is required for this scenario
Explanation: When releasing permission to send media in a broadcast call that was established as a normal call, the IWF must include the Floor Indicator with the A-bit set to '1' to signify it was initially a normal call. This ensures proper handling by the floor control server in the MCPTT system, maintaining consistency with how the session was originally established.