Nokia 3600 User Manual page 52

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
to turn off the autolock period. To unlock the phone, key in the lock code.
Note: When the phone is locked, calls may be possible to the emergency
number programed into your phone (e.g. 911 or other official
emergency number).
Lock if SIM changed
code when an unknown, new SIM card is inserted into your phone. The phone
maintains a list of SIM cards that are recognized as the owner's cards.
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 digit(s) as a phone number on the list.
To view the list of Fixed dialing numbers, go to Menu→ SIM→
Options in the Fixed dialing view are:
Open, Call, New contact, Edit, Delete,
Help and Exit.
Note: When Fixed Dialing is set on, calls may be possible to certain
emergency numbers programmed into your phone (911 or other
official emergency numbers).
To add new numbers to the Fixed dialing list, select Options→
contact or Add from
Closed user group
whom you can call and who can call you. For more information, contact
your service provider. Select
on with the service provider,
need to know the group index number), or Off.
Note: When calls are limited to Closed User Groups, calls may be possible
to certain emergency numbers programmed into your phone
(911 or other official emergency numbers).
- Select Yes if you want the phone to ask for the lock
Contacts.
(system service) - You can specify a group of people to
Default
On if you want to use another group (you
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Add to Contacts,
to activate the default group agreed
None
Fixed dialing.
Add from Contacts,
New