Tower radio help

[Lysander77]

Occasionally whilst flying into Rennes (using scenery from France VFR) I get the tower radio contact, which recognizes my aircraft and gives instructions, at other times not.  What settings in FS9 control this?
Any clues much appreciated.
      Many thanks,
                      Lysander77

[exnihilo]

To bring up your ATC (Air Traffic Control) screen quickly, just hit the "`" (accent) key.  You are given a list of options on what to contact (airport/tower/ground control/ATIS).  This is the "quickie" way to contact ATC; it automatically tunes the appropriate radio.

[Lysander77]

       Many thanks indeed.  A splendid help.  And having the radio contact makes the flights so much more interesting and realistic.
                    Gratefully,
                        Lysander77