Nokia 6600 - Security

116

Copyright

©

2004 Nokia. All rights reserved.

• Lock code (5 digits) - The lock code can be used to lock the phone and keypad

to avoid unauthorised use.

Note: The factory setting for the lock code is 12345. To avoid unauthorised

use of your phone, change the lock code. Keep the new code secret and in a safe
place separate from your phone.

• PUK and PUK2 codes (8 digits) - The PUK (Personal Unblocking Key) code is

required to change a blocked PIN code. The PUK2 code is required to change a
blocked PIN2 code. If the codes are not supplied with the SIM card, contact the
operator whose SIM card is in your phone for the codes.

You can change the following codes: lock code, PIN code, and PIN2 code. These
codes can only include the numbers from 0 to 9.

Note: Avoid using access codes similar to emergency numbers, such as 112,

to prevent accidental dialling of the emergency number.

PIN code request

- When the PIN code request is active, the code is requested each

time the phone is switched on. Note that deactivating the PIN code request may
not be allowed by some SIM cards.

PIN code

/

PIN2 code

/

Lock code

- Open this setting if you want to change the

code.

Autolock period

- You can set an autolock period, a time-out after which the

phone is automatically locked and can be used only if the correct lock code is
entered. Key in a number for the time-out in minutes or select

None

to turn off

the autolock period.

• To unlock the phone, key in the lock code.

Copyright

©

2004 Nokia. All rights reserved.

117

Note: When the phone is locked, calls may be possible to the emergency number

programmed into your phone (e.g. 112 or other official emergency number).

Lock if SIM changed

- Select

Yes

if you want the phone to ask for the lock code

when an unknown, new SIM card is inserted into your phone. The phone maintains
a list of SIM cards that are recognised as the owner’s cards.

Fixed dialling

- You can restrict your outgoing calls to selected phone numbers, if

supported by your SIM card. You need the PIN2 code for this function. When this
function is active, you can only call those phone numbers that are included in the
fixed dialling list or which begin with the same digit(s) as a phone number on the
list.

• Press

to set

Fixed dialling

on.

Options in the Fixed dialling view:

Open

,

Call

,

Activ. fixed dialling

/

Deact.

fixed dialling

,

New contact

,

Edit

,

Delete

,

Add to Contacts

,

Add from Contacts

,

Find

,

Mark/Unmark

,

Help

, and

Exit

.

Note: When Fixed Dialling is set on, calls may be possible to certain emergency

numbers in some networks (e.g. 112 or other official emergency number).

• To add new numbers to the Fixed dialling list, select

Options

→

New contact

or

Add from Contacts

.

Closed user group

(network service) - You can specify a group of people to whom

you can call and who can call you. For more information, contact your network
operator or service provider. Select:

Default

to activate the default group agreed

on with the network operator,

On

if you want to use another group (you need to

know the group index number), or

Off

.

118

Copyright

©

2004 Nokia. All rights reserved.

Note: When calls are limited to Closed User Groups, calls may be possible to certain

emergency numbers in some networks (e.g. 112 or other official emergency number).

Confirm SIM services

(network service) - To set the phone to display confirmation

messages when you are using a SIM card service.

Delete server

- To reset your connection settings allowing you to receive new

settings from your service provider.

Certif. management

In the Certificate management main view, you can see a list of authority
certificates that have been stored in your phone. Press

to see a list of personal

certificates, if available.

Authority certificates are used by some browser services, such as banking
services, for checking signatures or server certificates or other authority
certificates.

Digital certificates are used to verify the origin of browser pages and installed
software. However, they can only be trusted if the origin of the certificate is
known to be authentic.

Options in the certificate management main view:

Certificate details

,

Delete

,

Trust settings

,

Mark/Unmark

,

Help

, and

Exit

.

Digital certificates may be needed when you, for example:

• want to connect to an online bank or another site or remote server for actions

that involve transferring confidential information, or

• want to decrease the risk of viruses or other malicious software and be sure of

the authenticity of software when downloading and installing software.