Chapter 32 Accessibility 127
Hearing Aid Mode
iPhone has a Hearing Aid Mode that, when activated, may reduce interference with some
hearing aid models. Hearing Aid Mode reduces the transmission power of the cellular radio in
the GSM 1900 MHz band and may result in decreased 2G cellular coverage.
Activate Hearing Aid Mode: Go to Settings > General > Accessibility > Hearing Aids.
Assignable ringtones and vibrations
You can assign distinctive ringtones to people in your contacts list for audible caller ID. You can
also assign vibration patterns for notications from specic apps, for phone calls, for FaceTime
calls or messages from special contacts, and to alert you of a variety of other events, including
new voicemail, new mail, sent mail, Tweet, Facebook Post, and reminders. Choose from existing
patterns, or create new ones. See Sounds on page 139.
You can purchase ringtones from the iTunes Store on iPhone. See Chapter 22, iTunes Store, on
page 94.
LED Flash for Alerts
If you can’t hear the sounds that announce incoming calls and other alerts, you can have iPhone
ash its LED (next to the camera lens on the back of the iPhone). This works only when iPhone is
locked or asleep. Available for iPhone 4 or later.
Turn on LED Flash for Alerts: Go to Settings > General > Accessibility > LED Flash for Alerts.
Guided Access
Guided Access helps someone using iPhone to stay focused on a particular task. Guided Access
limits iPhone to a single app, and lets you control which app features are available. Use Guided
Access to:
•
Temporarily restrict iPhone to a particular app
•
Disable areas of the screen that aren’t relevant to a task, or areas where an accidental gesture
might cause a distraction
•
Disable the iPhone hardware buttons
Use Guided Access: Go to Settings > General > Accessibility > Guided Access, where you can:
•
Turn Guided Access on or o
•
Set a passcode that controls the use of Guided Access and prevents someone from leaving an
active session
•
Set whether iPhone can go to sleep during a session
Start a Guided Access session: Open the app you want to run, then triple-click the Home
button. Adjust settings for the session, then click Start.
•
Disable app controls and areas of the app screen: Circle any part of the screen you want to
disable. You can use the handles to adjust the area.
•
Ignore all screen touches: Turn o Touch.
•
Keep iPhone from switching from portrait to landscape or from responding to any other motions:
Turn o Motion.
End a Guided Access session: Triple-click the Home button and enter the Guided Access passcode.
