Related to controller-pilot data link communications (CPDLC)

Communications channel means a physical or virtual path of communications over which signals are transmitted between or among customer channel termination points.
Telecommunications Carrier is As Defined in the Act.
Communication Services means aeronautical fixed and mobile services to enable ground-to-ground, air-to-ground and air-to-air communications for ATC purposes;
Collaborative law communication means a statement, whether oral or in a record, or verbal or nonverbal, to which both of the following apply:
Communication technology means an electronic device or process that:

controller-pilot data link communications (CPDLC) definition