User Guide

Chapter 8 Settings 11 7
Change the PIN number for your SIM card:
1 Choose Phone > SIM PIN.
2 Turn SIM PIN on, then tap Change PIN.
3 Enter your current password, then enter your new password.
4 Enter your new password again to conrm, 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 nd out if there are any charges
for these services.
Safari
Safari settings let you select your Internet search engine, set security options, and for
developers, turn on debugging.
General
You can use Google or Yahoo! to perform Internet searches.
Select a search engine: Choose Safari > Search Engine and select the search engine
you want to use.
Security
By default, Safari is set to show features of the web, such as some movies, animation,
and web applications. You may wish to turn o some of these features to help protect
iPhone from possible security risks on the Internet.
Change security settings: Choose Safari, then do one of the following:
 To enable or disable JavaScript, turn JavaScript on or o.
JavaScript lets web programmers control elements of the page—for example, a
page that uses JavaScript might display the current date and time or cause a linked
page to appear in a new pop-up page.
 To enable or disable plug-ins, turn Plug-ins on or o. Plug-ins allow Safari to play some
types of audio and video les and to display Microsoft Word les and Microsoft
Excel documents.