In the context of aviation and aerospace, "Administrative Voice" refers to a voice communication protocol used by air traffic control (ATC) and pilots to convey non-urgent, routine, or administrative information. This communication is used for coordinating and exchanging administrative details that are not directly related to the safety of the flight or the movement of the aircraft.

Administrative Voice is typically used for exchanging information such as:

1. Flight planning and coordination
2. Clearances and approvals
3. Weather updates (not critical to safety)
4. Air traffic control procedures
5. Routine notifications
6. Coordination with other air traffic control centers or facilities

The key characteristics of Administrative Voice are:

1. Non-urgent: The information conveyed is not critical to the safety of the flight.
2. Routine: The communication is for routine or administrative purposes.
3. Pre-coordinated: The information is often pre-coordinated or pre-arranged between the pilot and ATC.

Using Administrative Voice allows air traffic control and pilots to manage and coordinate the administrative aspects of flight operations, while reserving more urgent and safety-critical communications for other protocols, such as "Operational Voice" or "Emergency Voice". This helps to minimize distraction, reduce communication workload, and ensure that critical safety information is prioritized.