X-Plane offers a computer-generated air traffic control (ATC) system. If you wish to disable this functionality and use an alternative, human-based ATC system such as VATSIM, IVAO, or PilotEdge (see this guide), follow these steps:
- Go to the X-Plane Settings menu
- Click the Sound tab
- Uncheck the boxes “Enable text ATC messages” and “Enable verbal ATC message“

