Security - Siemens S55 User Manual

10
The phone and SIM card are protect-
ed against misuse by several security
codes.
Keep these confidential numbers in a
safe place where you can access them
again if required.
K K
Setup
§Menu§
K
then select function.
Security codes
PIN control
The PIN is usually requested each
time the phone is switched on. You
can deactivate this feature but you
risk unauthorised use of the phone.
Some service providers do not per-
mit deactivating the control.
Press.
§Select§
J
Enter PIN.
Confirm input.
§OK§
Press.
§Change§
Confirm.
§OK§
Change PIN
You can change the PIN to any
4-8 digit number you find easier to
remember.
J
Enter current PIN.
Press.
§OK§
J
Enter new PIN.
§OK§
,
J
§OK§ Repeat new PIN.
,

Security

Security
Change PIN2
(display only if PIN 2 is available).
Proceed as with
Chg.phonecode
You define and enter the phone
codes (4-8 digits) when calling up a
phone-code protected function for
the first time. It is then valid for all
phone-code protected functions. Af-
ter three incorrect entries the phone
is locked. If this happens please con-
tact Siemens Service (page 50).
Clear SIM-card barring
If the PIN is entered incorrectly three
times, the SIM card is barred. Enter
the PUK (MASTER PIN), provided by
your service provider with the SIM
card, according to instructions. If the
PUK (MASTER PIN) has been lost,
please contact your service provider.
Prevent accidental activation
Even if PIN entry is deactivated, con-
firmation is required to switch on
phone. This prevents the phone
from being switched on accidentally,
e.g.
B
Hold down.
Press.
§OK
The phone switches on.
Change PIN.