Siemens M75 - Manual (Page 18)

17 Security
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Sirius\en\LA\SIR_Startup.fm
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Security
The phone and SIM card are protect-
ed against misuse by several security
codes.
PIN codes
C
¢
T
¢
Security
¢
PIN codes
¢
Select function.
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.
§Change§ Press.
J
Enter PIN.
C
Confirm entry.
Change PIN
You can change the PIN to any 4 to
8-digit number you find easier to
remember.
§Select§ Press.
J
Enter current PIN.
C
Press.
J
,
C
Enter new PIN.
J
,
C
Repeat new PIN.
Keep these security codes in a safe
place where you can access them again
if required.
PIN Protects your SIM card
(Personal 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 unlock SIM
cards after the wrong PIN has
been entered repeatedly.
Phone
code
Protects your phone. Must be
entered at the first security
setting.