As Europe begins the phased introduction of new datalink standards for aircraft and ATC (above FL285), Arinc Direct continues to play a leading role in future datalink standards (effectively the next-generation Acars).
So-called controller pilot datalink communications (CPDLC) requires aircraft to be able to communicate with ATC using VHF datalink (VDL) Mode 2, akin to text messaging of requests and clearances (although voice communications will still be used as a back-up).