Apple Iphone Fun Site

Flip the Ring/Silent switch to change between ring and silent modes.

When set to ring mode, iPhone plays all sounds. When set to silent mode, iPhone doesn’t ring or sound any alerts or sound effects. Alarms set using Clock do sound, however. By default, when you get a call, iPhone vibrates whether it’s set to ring 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.

http://www.apple.com/iphone/tips/

When you’re on the phone or listening to songs, movies, or other media, the buttons on the side of iPhone adjust the audio volume. Otherwise, the buttons control the volume for the ringer, alerts, and other sound effects.

For important information about avoiding hearing loss, see the Important Product Information Guide.To adjust the volume, use the buttons on the side of iPhone.

Sleep/Wake Button

When you’re not using iPhone but you still want to receive calls and text messages, you can lock it.

When iPhone is locked, nothing happens if you touch the screen. You can still listen to music and adjust the volume, and use the button on the included stereo headset to play or pause a song, or answer or end a call.

By default, if you don’t touch the screen for a minute, iPhone locks automatically.

Lock iPhone:

Press the Sleep/Wake button.

Unlock iPhone:

Press the Home button or the Sleep/Wake button, then drag the slider. Click to continue »