User's Manual

Changing Your Settings 63
Lock SIM Card
When the Lock SIM Card feature is enabled, your phone only
works with the current SIM. You must enter the lock code to
unlock the SIM so you can use a different SIM card. Once you
have entered the lock code, you are asked to confirm your
password.
䊳 Touch On or Off from the Lock SIM Card field.
Note: This lock code is typically the last four digits of the current phone
number or can be obtained from an AT&T customer service
representative.
Check PIN Code
When the Check PIN Code feature is enabled, you must enter
your PIN each time you switch on the phone. Consequently, any
person who does not have your PIN cannot use your phone
without your approval.
䊳 Touch On or Off from the Check PIN Code field.
Note: You can obtain your PIN from an AT&T customer service representative.
Lock Applications
Using this menu, you can lock your applications and media
content (apps, messages, images, and sounds) from being
accidentally accessed, altered or deleted. Once you lock the
content, you must enter the phone’s password to access the
associated menus.
Note: The first time you access the password screen, you will be prompted to
create a password.
1. Touch the Lock applications field.
2. Touch the box next to each application you want to lock or
touch Select All to select all applications.
• Applications include: Messaging, My stuff, Recent calls, Address
Book, Calendar, Memo, IM, and Tasks.
• Touch Save to store your new selections.
3. Enter a new password (during the first use) using the
on-screen keypad into the New Password field and touch
Confirm .
4. Enter the new password again and touch Confirm .
Note: To change this password, see “Change Phone Password” on page 64.
Fixed Dialing Mode
FDN (Fixed Dial Number) mode, if supported by your SIM card,
restricts your outgoing calls to a limited set of phone numbers.
When this feature is enabled, you can make calls only to phone