I've got the second Treo 750v after I sold the first one 2 months ago and was hoping that maybe following bug will be fixed or that my 1st unit only had this failure:

When I start dialing a contact or a entered number -the phone application starts to dial- and if the phone volume is set to the middle level or even higher, the dialing tone is extremely loud. It is impossible to hold the Treo closed to the ear, so I must to decrease the volume.

This appears everytime when the Treo was set to higher volume even during the last call and I'm wondering whether there is any registry-hack how to decrease the overall dialing tone??