Which code corresponds to Out of service in general?

• A. Message received
• B. Out of Service (Meal)
• C. Out of service
• D. Out of Service - Rest Relief

Answer: (C)

In this type of radio status, the point is to communicate your availability to handle calls. “Out of service” without any qualifier signals you are temporarily unavailable for calls in a general sense, without attaching a specific reason. It’s the neutral status you use when you’re not able to respond right now, and you’ll update your status when you’re back in service.

The other options add context: “Message received” is just an acknowledgment of someone’s transmission and doesn’t indicate your availability. The labeled variants like “Out of Service (Meal)” or “Out of Service – Rest Relief” specify particular reasons for being unavailable, which you’d use only when you want to communicate that specific condition to others. Using the general form keeps the situation simple and universally understood for quick status awareness.