CPDLC - how does it work?
I tried finding answers to my question online and here, but they didn’t specifically cover my concerns.
Does CPDLC in Vatsim context mean ATC will only communicate via CPDLC or do they also communicate via radio? Because in my recent flight I was tuned to the radio and didn’t hear a single word being said. I did see clearances in the messages by ATC given to flight numbers that I didn’t hear on radio or see asking for clearance in the messages.
Am I dumb for contacting CPDLC ATC (if it can be called like that even) via messages? I fly receive only because of microphone issues. Should it be done vis CPDLC or can I continue doing it via messages?