Operation Manual

112 Settings
Handset Lock
The Handset Lock is an additional security feature
which prevents unauthorised use of the phone or certain
features.
“Settings”
→ “Security” → “Handset Lock”
1. Select “On” or “Off”.
2. Enter your handset code.
To Change Handset Code
Before you change the handset code, select “On” in step
1 in “Handset Lock”. The default handset code is
“0000”.
“Settings”
→ “Security” → “Handset Lock” →
“Change code”
1. Enter the old handset code.
2. Enter a new handset code.
3. Enter the new handset code again.
Master Reset
All settings can be reset to their default settings.
“Settings”
→ “Master Reset”
1. Enter your handset code.
(M 9-9-3)
(M 9-0)