Nokia 6170

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phone number and the message centre number must be included on the fixed 
dialing list.
Closed user group
 (network service) to specify the group of people whom you 
can call and who can call you. For more information contact your network 
operator or service provider.
Security level
. Enter the security code, and select 
Phone
 to set the phone to ask 
for the security code whenever a new SIM card is inserted into the phone.
Select 
Memory
 to set the phone to ask for the security code when the SIM 
card’s memory is selected, when you change the memory in use, or copy from 
one memory to another (
 on page 
Access codes
 to change the security code, PIN code, PIN2 code, or barring 
password.
Restore factory settings
To reset some of the menu settings to their original values, press 
Menu
, and select 
Settings
 and 
Restore factory settings
. Key in the security code and press 
OK
.
The data that you have keyed in or downloaded is not deleted, for example, the 
names and phone numbers saved in 
Contacts
.
■ Gallery
You can save images and ringing tones that you have, for example, 
received in multimedia messages in the folders of the gallery.
The phone supports the following file formats: