Sony Ericsson Cordless DT590 - Manual (Page 111)

111 MD Evolution – Cordless DT590
More Features on your Extension
º Ь Ы
Select the menu item “Locks” and confirm.
Ь Ы
Press to confirm the selected menu item “Key lock”.
The following options are available :
•
Automatic
• Off
The current setting is indicated. º Ь Ы
Select the menu item“Automatic” and confirm.
Note : After enabling the Keylock function, do not press a
key for 20 seconds. If the enabling time has expired, the
keys are blocked and a key symbol is displayed.
l
Appears on the display
During Keylock the keys are locked, so you cannot use your phone.
If a key is pressed, the message “Press * to unlock keypad” is
displayed.
If you have locked the keys and you receive a call, you can answer
the call as usual without switching Keylock off. When the call is
ended, the keys are locked again after 20 seconds.
To unlock the keypad *
Press.
“Unlock keypad?” is displayed. Ь Ы
Press to switch off the Keylock.
The key symbol disappears; the keys are enabled again.