BT announced a new service on Tuesday that extends GSM mobile roaming to aircraft, enabling passengers to make or receive calls using a handset located in the back of the seat in front.
The Skyphone Mobile Connect service is based on passengers' existing mobile accounts, so they can receive calls to their usual number.
The first airline to adopt the service is Virgin Atlantic, which plans to start offering it early next year, and BT claims it will help prevent the unauthorised use of mobile phones on board aircraft, which can threaten aircraft safety.
However, being contactable at 36,000 feet during a relaxing long haul flight may not be such welcome news for business travellers.
Warming was most pronounced in Siberia region
The tank will be subjected to high stresses and loads via dozens of hydraulic cylinders during testing
'Sunlit wet sidewalk' provides evidence of methane rainfall on the north pole of Saturn's moon Titan
Methane rainfall indicates the start of the summer season in Titan's northern hemisphere
Scientists believe there could be other hydrides or superhydrides with super conducting properties