SETTING THE KEY LOCK
You can lock the keypad against unintentional entries. It is, however, still possible to pick up incoming calls even with the keypad locked.
Enable the Keypad Lock:
1.Press 
and hold for approximately 2 seconds.
2.The display shows Keypad Locked briefly and the key lock icon 
appears in the display.
Disable the Keypad Lock:
1.Press Unlock then 
to unlock the keys.
2.Keypad Unlocked appears briefly in the display.
KEYPAD BEEP ON/OFF
You can set the handset so that a beep is heard every time a key is pressed.
1. | Press |
| . |
2. | Press | or | repeatedly, select Handset. |
3. | Press |
| to confirm. |
4. | Press | or | repeatedly, select Keypad beep. |
5. | Press |
| to confirm. |
6.Select
–On: switches keypad beep on.
–Off: switches keypad beep off.
7.Press 
to confirm your selection or press 
to quit the menu without saving the setting.
ADJUST THE DISPLAY CONTRAST
1. | Press |
| . |
|
|
|
2. | Press | or | repeatedly, select Handset. |
|
| |
3. | Press |
| to confirm. |
|
|
|
4. | Press | or |
| repeatedly, select Contrast. |
|
|
5. | Press |
| to confirm. |
|
|
|
6. | Press | or |
| repeatedly to select the desired contrast level (8 contrast levels). | ||
7. | Press Save to confirm your selection or press | to quit the menu without saving the setting. | ||||
|
|
| ||||
Firmware version 1.0.0.8 | DP715/DP710 User Manual | Page 24 of 52 | ||||