Apple iPhone iOS 8.1 - Manual (Page 166)

Appendix A Accessibility 166
When TTY on iPhone is turned on, the TTY icon appears in the status bar at the top of the
screen. For information about using a particular TTY machine, see the documentation that came
with the machine.
Note: Continuity features are not available for TTY support.
Visual voicemail
The play and pause controls in visual voicemail let you control the playback of messages. Drag
the playhead on the scrubber bar to repeat a portion of the message that’s hard to understand.
See
Visual voicemail on page 52.
Voice Control
Voice Control lets you make phone calls and control Music playback using voice commands. See
Make a call on page 48, and Siri and Voice Control on page 71.
Accessibility in OS X
Take advantage of the accessibility features in OS X when you use iTunes to sync with iPhone.
In the Finder, choose Help > Help Center (or Help > Mac Help in OS X Yosemite), then search
For more information about iPhone and OS X accessibility features, see
www.apple.com/accessibility .