"JH" == Jay Honeck writes:

JH Denny outlined how the Lightspeed cell adaptors work (quite
JH well -- the sound quality is excellent) -- but you do know
JH they don't work in the air, right?

Eh? Just a week ago I successfully used a pax's cell phone with my
Lightspeed headset to call home in the air. But with my cell phone
[provider], it would connect and drop the call within a couple of
seconds.