I find that the minimum in-call volume on my HTC Desire is still far to loud on some calls.
Since I got the phone, I have flashed several different custom ROMs, radio updates, etc, and have had the issue throughout.
Do you know of any way (setting, hack, app, whatever) to reduce the minimum volume?
My device is rooted and I am currently running one of the CyanogenMod 7 (Gingerbread) nightly builds.