Sharp SH1810C User Manual page 106

Function Lock
By setting this option on, all the functions of your phone will be
locked until the correct handset code is entered.
Enter your handset code for "Function Lock" if you wish to activate
the Function Lock.
To Turn Off the Function Lock
Enter your handset code in standby to turn the Function Lock off.
Phonebook Lock
The Phonebook Lock function prevents unauthorised use of your
Phonebook.
Select "On" to lock or "Off" to unlock for "Phonebook Lock" and
enter your handset code.
The default handset code is "9999". For details on changing the
handset code, see "Change Handset Code" on page 106.
History Lock
The History Lock function prevents unauthorised access to Call Log.
By setting this option on, Call Log cannot be viewed until the correct
handset code is entered.
Press [Check] to lock or [Uncheck] to unlock.
Showing Secret Data
By setting this option on, the hidden data can be displayed.
Select "On" to display or "Off" to hide for "Show Secret Data". Enter
your handset code when you select "On".
106 Settings
The default handset code is "9999". For details on changing the
handset code, see "Change Handset Code".
Note
• The hidden data can be displayed temporarily by shaking the
phone. For details, see "Showing Secret Data Temporarily" on
page 26.
Change Handset Code
The default handset code is "9999".
Select "Change Handset Code" and enter the old handset code,
then enter a new handset code twice.
Master Reset
→
"Settings" "Phone Settings" tab
"Reset Settings"
1. Enter your handset code.
The default handset code is "9999". For details on changing
the handset code, see "Change Handset Code".
Note
• Some settings are not deleted by this function. Data stored in
Phonebook, etc. is not deleted.
→ →
"Master Reset"