Selecting Alert Volume and Vibrate settings
1.Press the Phone/Send button.
2.Open the menus .
3.Select Options, and then select Sound Preferences.
4.Select the Alert Volume pick list and select a volume level.
5.Select the first Vibrate pick list and indicate if you want your phone to vibrate when you receive a call or alert and Sound Mode is on.
6.Select the second Vibrate pick list and indicate if you want your phone to vibrate when you receive a call or alert and Sound Mode is off.
7.Select Done.
Adjusting call or music volume
While a call is in progress, press the Volume button on the side of your Treo™ 650 smartphone to adjust the call volume. While music is playing, press the Volume button to adjust the music volume.
Adjusting ringer volume
When a call is not in progress and music is not playing, press the Volume button on the side of your Treo to adjust ringer volume, and then press the Side button to confirm your selection.