Siemens 300 H - Manual (Page 43)

Telephone settings
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Step by Step
Preventing misuse of the telephone
You can prevent unauthorised persons from using your
telephone (and the telephone directory) during your ab-
sence.
Precondition: You have been assigned a personal iden-
tification number (PIN) by System Support.
Preventing unauthorised dialling:
Press the key. The lamp lights up.
MN
Enter the service code.
or
Select and confirm.
Select and confirm.
and
S
Enter the PIN (code number).
or In the case of optiset E advance 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.
Service Menu
PIN / COS?
Change COS?
Insert
chip card
Chip card
reader:
When the telephone is disabled in this way, a
special dial tone is audible when the handset is
lifted. Internally (within HiPath 4000), dialling is
possible in the usual way.