With the introduction of mobile phones services onboard some European-based airlines next year, the outdated "no smoking" signs above each seat will soon be replaced with "no mobile."
The illuminated "no smoking" signs have now become outdated since almost universal bans on lighting up on scheduled passenger planes were introduced in the late 1990s.
The "no mobile" sign will show a mobile phone crossed out and will be illuminated during takeoff until the plane has reached a certain altitude in order to ensure there is no interference with mobile networks on the ground.