Aastra 57i Parking Beep volume

[bryanyoung95]

I'm running Aastra XML Scripts 2.3.0 and 55i and 57iCTs running firmware 2.6. PIAF is 1.7.5.5.1 bronze. My users have requested that I turn down the volume of the beep from the phone that sounds after a call has been successfully parked. Is this the XML Beep? If so, I know I can turn it on or off... is there a way to control the volume? What volume does it use (ringer, audio, speakerphone audio)?