Flight Mode Icon
The CEA (Consumer Electronics Association) once tried to create a standard icon for the industry to indicate when a device is in "flight mode".
See: Flight Mode
If manufacturers used the standard icon, it would make it easier for flight attendants to verify that devices are in flight mode.
As of early 2017, manufacturers have generally not adopted this standard icon, using a variety of non-standard icons instead. It is not clear that it will ever become widespread.
CEA guidelines state that the icon should be accompanied by the words "transmitter disabled" when possible. There is also a standard icon for when the phone is not in flight mode, which should be accompanied by the words "transmitter enabled".
Last updated Feb 7, 2017 by Rich Brome
Editor in Chief Rich became fascinated with cell phones in 1999, creating mobile web sites for phones with tiny black-and-white displays and obsessing over new phone models. Realizing a need for better info about phones, he started Phone Scoop in 2001, and has been helming the site ever since. Rich has spent two decades researching and covering every detail of the phone industry, traveling the world to tour factories, interview CEOs, and get every last spec and photo Phone Scoop readers have come to expect. As an industry veteran, Rich is a respected voice on phone technology of the past, present, and future.