HTC Dash Getting Started Manual page 49

To change the ring type:
You can change the way that you are notified of incoming
calls. For example, you can choose to be notified by a ring, a
vibration, or a combination of both.
1. Tap Start > Settings > Personal tab > Phone > Phone
tab.
2. In the Ring type list, tap the desired option.
To change the keypad tone:
You can change the tone you hear when entering a phone
number on the keypad. If set to Long tones, the tone is heard
continuously for as long as the number on the keypad is
pressed. Use this setting if you are having trouble completing
tasks that rely on tones from your phone, such as accessing
messages from an answering machine. If set to Short tones,
the tone is heard only for one or two seconds. If set to Off, no
tone will be heard.
1. Tap Start > Settings > Personal tab > Phone > Phone
tab.
2. In the Keypad list, tap the desired option.
Section 3: Using Phone Features 43