Wikipedia
Frequentis
Frequentis is an Austrian high-tech company that develops communication and information systems in fields such as air traffic management and public safety & transport ( police, rescue and fire services, coastal rescue, railways, shipping, and others).
Frequentis is a founding shareholder of GroupEAD Europe S.L., the service provider company operating the European Aeronautical Database on behalf of EUROCONTROL, a project related to the Single European Sky, for which it is working on the first common voice communications system for Europe.