Patent ID: 8090399

Claim:
A method for controlling the operability of a transmitter on a mobile communications device, said method comprising: determining if the mobile communications device is located within a cabin of an airplane; determining a condition parameter of the mobile communications device; and transmitting a signal to the mobile communications device instructing the mobile communications device to disable the transmitter on the mobile communications device in response to the mobile communications device being located within an airplane and further in response to the determined condition parameter, wherein the signal includes an airline authority digital signature, which is validated by the mobile communications device prior to disabling the transmitter on the mobile communications device, wherein the signal further includes a prerecorded voice interrupt message, which interrupts a call in response to a person using the mobile communications device for voice communications and is played to the person using the mobile communications device, the prerecorded voice interrupt message indicating to the person using the mobile communications device that the mobile communications device will be disabling the transmitter within a predetermined timeframe.