Sharp GX-T17, User Manual, Page: 111 / 127

110 Settings
To Change Handset Code
Before you change the handset code, select “On” in step
1 in “Handset Lock” on page 109. 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 9-8)