How should interphones and assigned frequencies be monitored?

Monitoring interphones and assigned frequencies continuously with adequate volume is essential for effective communication and situational awareness in air traffic control operations. Continuous monitoring ensures that controllers are always aware of incoming communications, urgent messages, or changes in traffic situations that may arise unexpectedly. By maintaining an adequate volume, controllers can also ensure that they do not miss critical instructions or alerts, which could affect flight safety.

This approach contributes to a smoother operation and quicker response times, reducing the risk of miscommunication or oversight. It's important for controllers to stay engaged with the communication channels, as there can be persistent requirements to communicate with pilots or other controllers, not just during busy periods but throughout their entire shift.