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Nokia 6670 User Guide 73 Copyright © 2005 Nokia
Settings
• Fixed dialing—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 dialing list or which begin with the same
digits as a phone number on the list.
Press the Scroll key to set fixed dialing on. When fixed dialing is activated,
calls still may be possible to the official emergency number programmed
into your phone. To add new numbers to the fixed dialing list, select
Options > New contact or Add from Contacts.
Options in fixed dialing are Open, Call, Activ. fixed dialing or Deact. fixed
dialing, New contact, Edit, Delete, Add to Contacts, Add from Contacts,
Find, Mark/Unmark, Help, and Exit.
• Closed user group (network service)—You can specify a group of people
whom you can call and who can call you. For more information, contact
your network operator or service provider. Select one of the following:
Default—Activate the default group agreed on with the network operator.
On—Use another group (you need to know the group index number).
Off—Do not use closed user groups.
When calls are limited to closed user groups, calls still may be possible to
the official emergency number programmed into your phone.
• Confirm SIM services (network service)—Sets the phone to display
confirmation messages when you are using a SIM card service.
• Restore server—Reset your connection settings allowing you to receive
new settings from your service provider.
Certif. management
Options in Certif. management are Certificate details, Delete, Trust settings,
Mark/Unmark, Help, and Exit.
In the certificate management main view, you can see a list of authority certificates
that have been stored in your phone. Scroll right 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.
Server certificates are used to improve security in the connection between the
phone and the gateway. The phone receives the server certificate from the service
provider before the connection is established, and its validity is checked using the
authority certificates saved in the phone. Server certificates are not saved.
Server certificates may be needed, for example, when you want to do the following:
• Connect to an online bank or another site or remote server for actions that
involve transferring confidential information.