One of the main complaints about the BlackBerry Storm is the annoying touch tone sounds when you dial a number in the Phone application. If you read the forums, there are tons of people looking for the setting to disable that sound. Unfortunately, there is no specific setting for this. However there is a workaround.
The phone will not make the touch tone sounds when it’s set to vibrate or silent. So you if you want silence while you are dialing, you can go to:
1. Press Menu.
2. Select the Sounds application.
3. Select the Sound Profile of Vibrate or Silent.
4. Place your call.
When you’re done, you can simply go back and switch it back to the desired setting.