4.6 Sound & notification
4.6.1 Open settings, click contextual model, as Picture 4.19,
Picture 4.19
4.6.2 Click standard to enter into Picture 4.20
Picture 4.20
In picture 4.20, click vibrate, MID will vibrate when someone calls you.
In picture 4.21, you can choose phone ringtone you wanna.
