It's a brand-new, satellite-based system:
"GX Aviation is rapidly gathering momentum," says Bill Peltola, Inmarsat vice president, Aviation. "The first satellite in the Global Xpress constellation is in place following a successful launch in December 2013. The second and third satellites are scheduled to be launched by the end of 2014. This testing program with Air China is further confirmation that everything is on track for GX Aviation to be available globally for all types of aircraft from the get-go."