Question: In a 3GPP-defined MCPTT Emergency Group Session, what is the least directly supported scenario among the options for handling events like Group Call initiation or modification?
Option 1: Communication between two MCPTT Clients in different domains.
Option 2: From the target's MCPTT Client to the MCPTT Server.
Option 3: From the MCPTT Server to the target's MCPTT Client.
Option 4: Direct peer-to-peer communication between two MCPTT Servers of different domains for all event types without any client involvement.
Explanation: The context supports various communications involving clients and servers, but direct peer-to-peer handling of all listed events (e.g., initiation, modification) solely between two different domain's MCPTT Servers without any MCPTT Client involvement is not explicitly highlighted as a primary or directly supported scenario for these specific event types.