Siemens HiPath 4000 Operating Instructions Manual page 82

Private Sphere/Security
Step by Step
Chip card
reader:
program/service
>
PIN / COS?
>
Change COS?
82
or In the case of optiPoint 420 standard with Chip card
reader: Insert the chip card. All lamps light up briefly
Input is followed by the display: "Executed".
Remove the chip card again.
When the telephone is disabled in this way, a
special dial tone is audible when the handset is
Insert
lifted. Internally (within HiPath 4000), dialing is
Chip card
possible in the usual way.
Enabling the telephone again:
Press the key. The lamp lights up.
jk
Enter the service code.
or
:
Select and confirm.
:
Select and confirm.
and
p
Enter the PIN (code number).
Input is followed by the display:
"Executed".