Select Menu > Ctrl. panel > 3-D tones.
To enable three-dimensional (3-D) sound effects for ringing tones, select 3-D ringing tone effects > On. Not all ringing tones support 3–D effects.
To change the 3–D effect that is applied to the ringing tone, select Sound trajectory and the desired effect.
To modify the 3–D effect, select from the following:
Trajectory speed - Select the speed at which sound moves from one direction to another. This setting is not available for all effects.
Reverberation - Select the desired effect to adjust the amount of echo.
Doppler effect - Select On to set the ringing tone sound higher when you are closer to your device, and lower when you are farther away. This setting is not available for all effects.
To listen to the ringing tone with the 3–D effect, select Options > Play tone.
To adjust the volume of the ringing tone, select Menu > Ctrl. panel > Profiles and Options > Customize > Ringing volume.