What is the main purpose of using interphone systems in air traffic control?

The main purpose of interphone systems in air traffic control is to facilitate rapid and effective communication between controllers and various entities involved in aviation operations. This communication is critical for the exchange of traffic control messages, which include instructions, clearances, and situational updates regarding aircraft movements and safety.

Interphone systems ensure that messages can be relayed quickly and clearly, promoting situational awareness and efficient coordination among air traffic controllers, pilots, and ground personnel. This is essential for maintaining the safe and efficient flow of air traffic, especially in busy airspace or during periods of high traffic volume.

Other functions related to redundancy, better communication, and staff scheduling are important in their respective contexts but do not capture the primary operational role of interphones in traffic control. The exchange of traffic control messages is indeed the central focus of these systems, making it crucial for the overall functionality of air traffic management.