Security - Nokia NSERIES N73 User Manual

Security

Phone and SIM
PIN code request—When active, the code is requested
each time the device is switched on. Deactivating the
personal identification number (PIN) code request may
not be allowed by some SIM cards. See 'Glossary of PIN
and lock codes', p. 120.
PIN code, PIN2 code, and
lock code, PIN code, and PIN2 code. These codes can only
include the numbers from 0 to 9. If you forget any of
these codes, contact your service provider. See 'Glossary
of PIN and lock codes', p. 120.
Avoid using access codes similar to the emergency
numbers to prevent accidental dialing of the emergency
number.
Autolock period—You can set an autolock period, a
time-out after which the device automatically locks. To
turn off the autolock period, select None.
To unlock the device, enter the lock code.
When the device is locked, calls still may be possible to
the official emergency number programmed into your
device.
120
Lock code—You can change the
Tip! To lock the device manually, press
commands opens. Select
Lock if SIM changed—You can set the device to ask for
the lock code when an unknown SIM card is inserted into
your device. The device maintains a list of SIM cards that
are recognized as the owner's cards.
Closed user group—You can specify a group of people to
whom you can call and who can call you (network service).
When calls are limited to closed user groups, calls may be
possible to the official emergency number programmed
into your device.
Confirm SIM services—You can set the device to display
confirmation messages when you are using a SIM card
service (network service).
Glossary of PIN and lock codes
If you forget any of these codes, contact your service
provider.
Personal identification number (PIN) code—This code
protects your SIM card against unauthorized use. The PIN
code (4 to 8 digits) is usually supplied with the SIM card.
After three consecutive incorrect PIN code entries, the
code is blocked, and you need the PUK code to unblock it.
UPIN code—This code may be supplied with the USIM card.
The USIM card is an enhanced version of the SIM card and
is supported by UMTS mobile phones.
. A list of
Lock phone.