Answer and end calls
To answer a call, press the Send key or unlock the phone (if locked) and tap Answer.
To end the call, press the End key or unlock the phone (if locked) and tap End Call.
Adjust call volume
While on an active call, press the Volume key up or down to adjust the call volume.
Adjust ring volume
Press the Volume key up or down to adjust ring volume.
Adjust multimedia volume
1.From the Home screen, tap Menu 
.
2.Tap Settings.
3.Tap Sounds.
4.Tap Volume.
5.Tap Multimedia.
6.Tap the desired volume level.
7.Tap Done.
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