Cockpit Colin wrote:

I'm using an old AMPS / Digital dual mode band phone - but to be honest, I
don't use it a lot in the air. For me, the advantage of the flightcell was
to boost the mic bias and levels on my Bose headset so that the tower could
hear me a little easier (the Bose tend to be a bit on the quiet side, and I
tend to speak a bit too softly).

You mean for a grand the Bose mic isn't adjustable? Geez, there's a pot
on my Lightspeed and a pot on my Narco com and a panel selectable mic
gain on my Apollo SL40. The last place I need to adjust my mic is my
telephone interface.