Nokia 3720 - Manual (Page 11)

Make back-up copies or keep a written
record of all important information stored
in your device.
When connecting to any other device,
read its user guide for detailed safety
instructions. Do not connect incompatible
products.
The images in this guide may differ from
your device display.
Refer to the user guide for other
important information about your device.
Network services
To use the device you must have service
from a wireless service provider. Many of
the features require special network
features. These features are not available
on all networks; other networks may
require that you make specific
arrangements with your service provider
before you can use the network services.
Using network services involves
transmission of data. Check with your
service provider for details about fees in
your home network and when roaming on
other networks. Your service provider can
give you instructions and explain what
charges will apply. Some networks may
have limitations that affect how you can
use network services. For instance, some
networks may not support all language-
dependent characters and services.
Your service provider may have requested
that certain features be disabled or not
activated in your device. If so, these
features will not appear on your device
menu. Your device may also have a special
configuration such as changes in menu
names, menu order, and icons. Contact
your service provider for more
information.
Access codes
To set how your phone uses the access
codes and security settings, select
Menu > Settings > Security > Access
codes .
• The security code helps to protect
your phone against unauthorised use.
The preset code is 12345. You can
change the code and set the phone to
request the code. Some operations
require the security code regardless of
the settings, for example if you want
to restore the factory settings. Keep
the code secret and in a safe place
separate from your phone. If you
forget the code and your phone is
locked, your phone will require
service and additional charges may
apply. For more information, contact
a Nokia Care point or your phone
dealer.
• The PIN (UPIN) code, supplied with the
SIM (USIM) card, helps to protect the
card against unauthorised use.
• The PIN2 (UPIN2) code, supplied with
some SIM (USIM) cards, is required to
access certain services.
• PUK (UPUK) and PUK2 (UPUK2) codes
may be supplied with the SIM (USIM)
card. If you enter the PIN code
incorrectly three times in succession,
you are asked for the PUK code. If the
codes are not supplied, contact your
service provider.
• The barring password is required
when using the call barring service to
restrict calls to and from your phone
(network service).
• To view or change the security
module settings for the browser,
select Menu > Settings >
Security > Security module sett. .
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