Apple iPhone OS 3.1 - Manual (Page 191)

Triple-click Home
Triple-click Home provides an easy way to turn some of the Accessibility features on
or off when you press the Home button quickly three times. You can set Triple-click
Home to turn VoiceOver on or off, turn White on Black on or off, or present the
options to:
Turn VoiceOver on or off •
Turn Zoom on or off •
Turn White on Black on or off •
Triple-click Home is turned off by default.
Set the Triple-click Home function: In Settings, choose General > Accessibility >
Triple-click Home and choose the function you want.
Closed Captioning and Other Helpful Features
Many features available on all models of iPhone help make iPhone accessible to all
users, including those with visual or auditory impairments.
Closed Captioning
You can turn on closed captioning for videos in iPod settings. See “Video” on page 158.
Voice Control
Voice Control (available only on iPhone 3GS) lets you make phone calls and control
iPod music playback by using voice commands. See “Voice Dialing” on page 48, and
“Using Voice Control with iPod” on page 77.
Large Phone Keypad
Make phone calls simply by tapping entries in your contacts and favorites lists. When
you need to dial a number, iPhone’s large numeric keypad makes it easy. See “Phone
Calls” on page 47.
Widescreen Keyboards
Several applications let you rotate iPhone when you’re typing so that you can use a
larger keyboard:
Mail •
Safari •
Messages •
Notes •
Contacts •
191 Chapter 25 Accessibility