Locking/Unlocking The Handset - Siemens HiPath 3000 Operating Instruction

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Locking/unlocking the handset

You can lock your handset to prevent external dialling
and programming, thereby preventing unauthorised
use in your absence, for example.
Prerequisite: You have defined a personal code or use
the default code "00000".
Locking the handset
c or d Press and hold the Talk key or press and hold the
Speakerphone key.
Open the system menu.
Menu
[
Select the menu item and confirm.
o
Enter the PIN code (5 digits, default "00000").
a Press the On-hook key to end the operation.
Unlocking the handset
c or d Press and hold the Talk key or press and hold the
Speakerphone key.
Open the system menu.
Menu
[
Select the menu item and confirm.
o
Enter the PIN code (5 digits, default "00000").
a Press the On-hook key to end the operation.
Even though it is locked, you can still use your
handset to answer external calls and make
internal calls. When an external connection is
established, the following message appears on
the display "Telephone Lock Active".
Your handset can also be locked from a central
station  page 142.
Telephone blocking
143