Ericsson DT288 User Manual page 77

To enable or disable protection against unauthorized use:
Route: Handset » PhoneLock » PowerOn
1. Select PowerOn and press
Enter PIN: is displayed.
2. Enter the PIN code for the cordless phone (default 0000) and press
.
YES
The current setting is displayed.
3. Press or
• On to enable protection.
• Off to disable protection.
4. Press to confirm.
YES
Securing against adding or deleting subscriptions
You can set the cordless phone so that the PIN code must be entered when
adding or deleting telephone network subscriptions. This option is off by
default.
.
YES
to select one of the following options:
Blocking keys and extra security 77