Kyocera QCP 6035 Reference Manual page 210

Voice Answer—
Some wireless service providers require CHAP authentication for data coverage;
others do not. Check with your wireless service provider to determine whether you
need to change this parameter. You can turn CHAP authentication on or off on the
Phone Preferences screen.
1. To turn on CHAP authentication, put a check mark beside Enable CHAP
Authentication on the Phone Preferences screen.
2. To turn off CHAP authentication, remove the check mark.
If you are not sure, leave CHAP enabled.
1. From the Phone Preferences screen, tap Keypad.
2. To adjust the over-the-air tones the phone makes while you are dialing, tap the
beside Key Length. Select Normal or Long.
In most cases, you won't need to adjust this setting. For some applications (for
example, modems), you may need to set the tone to Long.
3. To adjust the volume of the beep you hear when you press a key on the keypad,
tap the beside Key Volume. Select Off, Low, Medium Low, Medium High,
or High.
4. To adjust the type of sound you hear when you press a key on the keypad, tap
the beside Key Sound. Select Tones or Clicks.
5. To adjust the amount of time the backlight remains lighted, tap the
Backlight. Select one of the following:
The backlight does not come on automatically when you
press a key.
The backlight comes on whenever you press any key and
remains on for 10 seconds after the last key press.
beside