Apple iPhone OS 3.1 - Manual (Page 39)

Say only iPhone commands and names, and numbers. Pause slightly between •
commands.
Use full names.
•
By default, Voice Control expects you to speak voice commands in the language that’s
set for iPhone (the General > International > Language setting). The Voice Control
settings let you change the language for speaking voice commands. Some languages
are available in different dialects or accents.
Change language or country: In Settings, choose General > International > Voice
Control and tap the language or country.
Voice Control for the iPod application is always on, but for security you can prevent
voice dialing when iPhone is locked.
Prevent voice dialing when iPhone is locked: In Settings, choose General > Passcode
Lock and turn Voice Dial off. Unlock iPhone to use voice dialing.
See“Voice Dialing” on page 48 and“Using Voice Control with iPod” on page 77.
Stereo Headset
The headset included with iPhone features a microphone and an integrated button
that allows you to answer and end calls easily, and control audio and video playback.
The headset included with iPhone 3GS (shown here) also has volume buttons.
Center button
Plug in the headset to listen to music or make a phone call. Callers hear you through
the built-in microphone. Press the center button to control music playback and answer
or end calls, even when iPhone is locked. (You can also use the equivalent button on
your Bluetooth headset to control these functions.)
Pause a song or video Press the center button once. Press again to
resume playback.
Skip to the next song Press the center button twice quickly.
Return to previous song Press the center button three times quickly.
Fast-forward Press the center button twice quickly and hold.
39 Chapter 2 Basics