Apple MB046LL/A, MC555LL/A, MB048LL/A manual Changing Your Voicemail Password, Locking Your SIM Card

For more information about other accessibility features of iPhone, go to Chapter 25, “Accessibility,” on page 182.

Changing Your Voicemail Password

A voicemail password helps prevent others from access your voicemail. You need to enter the password only when you’re calling in to get your messages from another phone. You won’t need to enter the password when using voicemail on iPhone.

Change your voicemail password: Choose Phone > Change Voicemail Password.

Locking Your SIM Card

You can lock your SIM card, so it can’t be used without a Personal Identification Number (PIN). You must enter the PIN each time you turn iPhone off and turn it back on again. Some carriers require a SIM PIN in order to use iPhone.

Important: If you enter the PIN incorrectly three times, you may need to enter a Personal Unlocking Key (PUK) to enable your SIM card again. Refer to the SIM card documentation or contact your carrier. Some cellular networks may not accept an emergency call from iPhone if the SIM is locked.

Turn the SIM PIN on or off:

1Choose Phone > SIM PIN, then turn SIM PIN on or off.

2Enter your PIN to confirm. Use the PIN assigned by your carrier, or your carrier’s default

PIN.

Change the PIN for your SIM card:

1Choose Phone > SIM PIN.

2Turn SIM PIN on, then tap Change PIN.

3Enter your current PIN, then enter your new PIN.

4Enter your new PIN again to confirm, then tap Done.

Accessing Your Carrier’s Services

Depending on your carrier, you may be able to access some of your carrier’s services directly from iPhone. For example, you may be able to check your bill balance, call directory assistance, and view how many minutes you have left.

Access your carrier’s services: Choose Phone. Then scroll down and tap the button for your carrier’s services.

When you request information such as your bill balance, your carrier may provide the information in a text message. Contact your carrier to find out if there are any charges for these services.

Chapter 19    Settings

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