•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 
> Messaging.
2.In the message list, touch Settings > 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.
On the Settings screen, touch Call settings to customize your call functions.
12.4.2 Turning on Data Roaming
1.On the Settings screen, touch Wireless & networks > Mobile networks.
2.Select the Data roaming check box.
Accessing data services while roaming may incur additional charges. Ask your wireless service provider about data roaming fees.
12.4.3 Switching off the Data Service
1.On the Settings screen, touch Wireless & networks > Mobile networks.
2.Clear the Data enabled check box.
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