Why don't voice radio communications use FM?

Just tell people they would operate it like a telephone: the pilot would
direct her call to a particular listener (e.g. ATC) and ATC gets a signal
(like a phone ringing!)

"Your call is important to us. Our operators are busy right now giving
their full attention to other airlines. We will be with you shortly.
Did you know that you can find most of the information you seek on our
website? Please log on to www.getlostspamcan.com. In the mean time, we
hope you enjoy our new rap hold music."

after hitting the emergency transmit button in her aircraft

Yanno, this reminds me of what was promised in our health care system
about twenty or thirty years ago.

Jose
--
There are more ways to skin a cat than there are cats.
for Email, make the obvious change in the address.