Apple iPhone OS 3.1 - Manual (Page 28)

Ring/Silent Switch
Flip the Ring/Silent switch to change between ring and silent modes.
Ring
Silent
When set to ring mode, iPhone plays all sounds. When set to silent mode, iPhone
doesn’t ring or play alerts and other sound effects.
Important: Clock alarms, audio-dependent applications such as iPod, and many games
still play sounds through the built-in speaker when iPhone is set to silent mode.
By default, when you get a call, iPhone vibrates whether it’s set to ring mode, or in
silent mode. If iPhone is set to ring mode, you can silence a call by pressing the Sleep/
Wake button or one of the volume buttons once. Press a second time to send the call
to voicemail.
For information about changing sound and vibrate settings, see “Sounds and the Ring/
Silent Switch” on page 141.
Touchscreen
The controls on the iPhone touchscreen change dynamically depending on the task
you’re performing.
Opening Applications
Open an application: Tap an icon.
28 Chapter 2 Basics