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(quietest), one end slider one These the the of in posisitions the by the the handled registry bottom (standard), middle and slider at the of 3 top (loudest). value HKCU\ControlPanel\Sounds\LoudestInCallVolume
end annoying HKCU\ControlPanel\Sounds\QuietestInCallVolume
keys volume
play of changing is 'p' for beeps 3 in-call actually change Disable the value to 'Script' blank the