Siemens M50 - Manual (Page 12)

Security
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M50 en, A31008-H5150-A1-1-7619 (1. März 2002, 17:25)
©
Siem
ens AG 2001
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Security The phone and SIM card are protect-
ed against misuse by several security
codes.
§Menu
¢
Setup
¢
Security
¢
then select a function
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.
§Select§ Press.
J
Enter PIN.
§OK§ Confirm input.
§Change§ Press.
§OK§ Confirm.
Some service providers do not per-
mit this function.
Change PIN
You can change the PIN to any
4-8 digit number you may find easier
to remember.
J
Enter old PIN.
§OK§ Press.
J
, §OK§ Enter new PIN.
J , §OK§ Repeat new PIN.
Change PIN2
(display only if PIN 2 is available).
Proceed as with Change PIN .
Keep these confidential numbers in a
safe place where you can access them
again if required.
PIN Protects your SIM card (person-
al identification number).
PIN2 This is needed to set the charge
detail display and to access ad-
ditional functions on special
SIM cards.
PUK
PUK2
Key code. Used to unlocked
SIM cards after the wrong PIN
has been entered.
Phone
code
Protects your phone. Must be
entered at the first security set-
ting.