Inmarsat Network Upgrade

The Classic Aero services are now available over Inmarsat's latest generation I-4 satellites. As a result, air transport, business, VIP and government users of Classic Aero can now access SwiftBroadband through a single antenna and set of avionics.
This enhancement to the Inmarsat network allows users to enjoy the benefits of satellite-aided air traffic control alongside SwiftBroadband-based high-speed connectivity for passenger and crew applications.

The Classic Aero services are currently used in more than 8,000 airliners, business jets and military aircraft for operational and safety-critical services, such as Acars and CPDLC (Controller-Pilot Datalink Communication) links between the flight deck and air traffic control.

The Classic services now available over the Inmarsat-4 (I-4) satellites in addition to the Inmarsat-3 constellation are C8400 voice plus Data-2 (for Acars and CPDLC) and Data-3.

Source: Inmarsat