Cell phones do not affect Communication systems on Airplanes.

Airplanes are specially insulated against foreign radio signals, and their communication and navigation instruments operate on different frequencies from cell phones. The Federal Communications Commission (USA) is actually the agency responsible for the ban, since the signals could potentially block telecommunication systems on the ground.


If someone makes a phone call from a plane, the signal would bounce across multiple cell towers at once, which could prevent other calls from going through. Yet some airlines in Europe, the Middle East and Asia have started allowing cell phone usage on flights.