The intercommunication system on aircraft is commonly referred to by what term?

• A. Interphone
• B. Intercom
• C. Public Address
• D. Headset

Answer: (A)

In flight, crew need a private way to talk to each other without blasting announcements to passengers. That onboard private talk network is called the interphone. It covers the handsets or headsets and the controls pilots and crew use to communicate between cockpit stations and the cabin. It’s a dedicated system separate from passenger announcements, which is what the Public Address system handles, and it’s more than just a headset device. While “intercom” is a familiar term in everyday use, aviation contexts typically use “interphone” to name this specific internal communication system.