Question: In a Mission Critical Data (MCData) environment, as per 3GPP specifications, what happens to incoming communications for an MCData user who has requested storage and is supported by an MCData message store?
Option 1: The communications are directly delivered to the User Equipment (UE) without storing in the MCData message store.
Option 2: Only outgoing communications are stored in the MCData message store upon request.
Option 3: Incoming communications are stored temporarily but deleted if not retrieved within a specified timeframe.
Option 4: All incoming communications are stored in the user's account in the MCData message store.
Explanation: According to the specifications, when an MCData user is supported by an MCData message store and has made such a request, all their incoming communications are indeed stored in their account within the MCData message store. This ensures that critical data is retained for access at a later time if needed, aligning with the reliability and accessibility goals of Mission Critical Communications.