Hey folks, General question to anybody who knows this answer. I jus recently found a great site that is full of ATC comms, towers, and approach from around the globe. One of Interest is North Atlantic Tracks. Gander Radio And Shannon, with the crews giving position reports, or at least trying too. Anyway, the question is, what the heck is a cell call check? And the weird tones like someone is watching that old American firefighter show, Emergency. Beeee baaaaa.
