OfCom, a British regulatory body, has declared legal the use of “mobiles” on UK registered planes flying over Europe. It would be up to the airlines, however, to purchase and implement the technology necessary for providing cell-phone service in-flight.

However, there may be a delay in bringing cell-phones to the skies. According to the BBC,

“The European Aviation Safety Agency needs to approve any hardware that would be installed in aircraft to ensure that it did not interfere with other flight systems.”

Some experts believe that cell-phone signals interefere with the navigation tools in aircraft, sometimes changing bearings by 5 degrees.