Siemens S40 - Manual (Page 38)

Encryption indication
Get a warning in the display and a
sound alarm, if you connect to a
network which does not support
encryption.
Fixed dialling
Select whether you want the fixed
dialling function to be on or off
(only available if you have defined
and stored numbers in the fixed
dialling phone book (p. 21).
If you have selected »Fixed
dialling on«, your address book and
plain numbers phone book will not
be visible in the display and can
thus not be accessed. Of course,
they remain in the internal memory
of the phone and on the SIM card,
respectively, and can be accessed
again by selecting »Fixed dialling
off«.
Barred dialling
Select whether you want the
barred dialling function to be on or
off (only available if you have
defined and stored numbers in the
barred dialling phone book (p. 21).
Facts & Tips
• Encryption means that the network
encrypts conversations to make it dif-
ficult for unauthorised persons to lis-
ten in on them.
• Contact your network operator for
further information on PUK2 and PIN2
codes.
73 Setup menu
Security
72 Setup menu
First
Enter the Setup menu
by pressing »MENU«
Select »Security«
Entering the Security menu gives
you different possibilities of pre-
venting misuse of your SIM card
and your telephone, e.g. if your
phone is lost or stolen.
PIN code
Activate PIN Select whether your
PIN code should be on or off. The
PIN code is a 4 to 8 digit code
which must be entered each time
you switch on your phone.
Change PIN Change your PIN
code.
Change PIN2
Change your PIN2 code (used on
some SIM cards to access special
functions).
SIM lock
Link your telephone and your SIM
card together by activating the SIM
lock. You will be asked to enter a 6
to 16 digit code of your own
choice.
This means that if for instance
your phone is stolen, it cannot be
used together with another SIM
card.
Network password
Change your network password
(used if you subscribe to a call bar-
ring service).
Facts & Tips
• If you enter an invalid PIN code
three times, your SIM card will be
blocked, and to unblock it you have to
enter the PUK code supplied by
your network operator. This procedure
prevents unauthorised persons from
working out your PIN code by repeat-
edly entering different combinations
of numbers.
• For your own sake, remember to
write down your SIM lock code to be
able to deactivate the lock at a later
time. You have 10 attempts before
the phone is blocked.
• The phone will inform you how
many tries you have left before the
SIM card is blocked. If you enter an
invalid PUK code 10 times, your SIM
card will be permanently blocked and
you have to contact your network
operator.
User guide S40 US 11/01/01 9:30 Side 72