Charles O'Rourke wrote:
It was digital. I couldn't hear anything because it was so loud I
didn't even bother to take off my headset, but I yelled into the
phone
like a goofball ("if you can hear me I'm at 3,200 feet and I'll call
you back when I land") and the caller heard me fine.

I've found that if you bring the engine back to idle, you have a better
chance of actually hearing the other person... Of course, this tends to
prompt you to make shorter conversations... Since I rarely get a good
signal above 400 ft AGL, it makes for VERY short conversations on my
part... Basically, something like, "I'm on short final, pull the car
around"...