Samsung GT I8000 User Manual page 27

Adjust the system volume
To adjust the system volume, press the Volume key up or
down. To set the device to vibrate, press and hold the Volume
key down. To deactivate the vibrate feature, press and hold the
Volume key down again.
Activate Etiquette pause
You can temporarily pause the music player or mute event
alarms by placing the device face down when Etiquette pause
is activated. To activate Etiquette pause,
1
Tap Start > Settings.
2
On the Basic Settings tab, tap Motion Settings > Etiquette.
3
Tap next to Enable etiquette pause.
4
Tap Done.
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