When I have Volumex (2.0.2.3) set to "auto-mute system sounds during calls", it interferes with the two-way recording of ACR on my Touch HD. Oddly enough, it disables any recording of my voice in the call.
I don't recall this behavior happening before, but perhaps I did not have the "auto-mute system sounds" enabled.
Either way, is it appropriate that my own voice over the phone is treated as a system sound?
Touch HD, WM6.1, HTC Latest Stock ROM