Question: In an MCPTT (Mission Critical Push To Talk) system, when the IWF (Interworking Function) floor control server enters the 'G: pending Floor Revoke' state for a group call identified as an emergency call, what specific additional information must the Floor Revoke message include?
Option 1: Only the <Reject Cause> value in the Reject Cause field.
Option 2: The Floor Indicator field with appropriate indications, but not necessarily the <Reject Cause> value.
Option 3: Both the <Reject Cause> value in the Reject Cause field and the Floor Indicator field with appropriate indications.
Option 4: Neither the <Reject Cause> value nor the Floor Indicator field, as they are not required for emergency calls.
Explanation: For an emergency call, the Floor Revoke message must include two crucial pieces of information: the reason (conveyed through the <Reject Cause> value in the Reject Cause field) and, for specific call types like emergency calls, the Floor Indicator field with appropriate indications to ensure proper handling and notification within the MCPTT system.