changing the call waiting sound on xv6700

hello, anyone know how to change the call waiting tone on the xv6700?
i have it flashed to wm 6.1 using the current kitchen. i love the work the kitchen has done and i dont want to sound ungrateful. normally the call waiting tone is a polite beep but for some reason the default call waiting sounds like an alarm clock . i looked in the phone notification settings, but no luck! any help would be greatly appreciated. its probably a registry edit but im having trouble finding it...... thanks

ps.. i finally got my cricket mms to work after a year of fiddling with it!!! thanks to the titan 6800 forum for the mms settings!!!