I used an app called Sound Manager. Any luck with this using other settings?
I noticed that the other Motorola and Samsung phones seems to have similar issues with touch tone volume but the HTC and LG phones did not... their touch tones were nice and loud.
My dial pad volume was fine until yesterday. Same thing today; no volume. Barely audible if you hold it up to your ear. Used audio manager to up the system volume. Dial pad is audible now, but not full volume. Something happened with these phones.