Like what i ean is, is that i usually am on my departing airports unicom, takeoff, and leave the frequency, and connect to the arrival airport unicom, or tower or you know.
But pilots real life are talking to ATC during phases of flight, like there talking to center for climb and stuff,
this probably makes no sense lol
to summarize this, Which atc do i use during flight?
When flying on the live servers when ATC isn’t present, you would tune in to the unicom frequency of both the airport your departing from and then tune into the unicom frequency of the arrival airport when you’re approaching to land.
During your flight, you will be flying through multiple different centre airspaces but unfortunately you won’t be able to tune into any frequencies unless ATC is active for that centre frequency which would be indicated by a white boundary on the map.
Please let us know if you have any other questions.