![background image](http://html.mh-extra.com/html/bosch/mm588/mm588_operating-instructions-manual_38848050.webp)
The functions
Integral 3
50
Personal Identification Number (PIN)
Important settings and functions of your handset are safeguarded by
means of a four-digit Personal Identification Number (PIN). You may
change the PIN. The PIN also enables you to lock your handset.
PIN
Menu
Lock
Menu
Create PIN
Confirm.
Enter the old PIN. (When delivered, this is set to
0000). The digits do not appear in the display.
Confirm.
Enter the new PIN, e.g. 2345. The digits do not
appear in the display.
Confirm.
Repeat the new PIN. The digits do not appear in
the display.
Confirm.
Press the left softkey for a long period to return to basic status.
i
Take good note of your PIN! If you forget the PIN, an adjustment inside the
telephone will be necessary. Contact the Bosch Service in this case.