12.3.2 Adjusting the Volume
You can adjust the volume while on the Home screen or on most of the application screens (such as the screen displayed during a call or when playing music or videos). Press the Volume keys to adjust volume to the level you desire.
You can also adjust the volume from the settings screen.
1.On the Settings screen, touch Sound > Volume.
2.Drag the slider left to make the volume lower, or right to make it higher.
3.Touch OKto save the adjustment.
12.3.3 Changing the Phone Ringtone
1.On the Settings screen, touch Sound > Phone ringtone.
2.In the displayed list, select an option:
•Ringtone: Select a preinstalled ringtone. The ringtone plays when selected.
•Music: Select the music stored in the phone or on the microSD card. The music plays when selected.
3.Touch OK.
12.3.4 Changing the Message Ringtone
1.On the Home screen, touch 
> Messages.
2.In the message list, touch 
> Settings, and then touch Select ringtone.
3.In the displayed list, select an option:
•Ringtone: Select a preinstalled ringtone. The ringtone plays when selected.
•Music: Select the music stored in the phone or on the microSD card. The music plays when selected.
4.Touch OK.
12.4 Setting Phone Services
12.4.1 Customizing Call Settings
Mobile phone service providers offer different services such as call forwarding, call waiting, fixed dialing numbers, and voicemail. You can customize many of these services if they are part of your calling plan.
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