Setting the Bell Volume The keyboard bell sounds to alert you to a system message. To adjust the bell volume: 1. Choose Keyboard... from Session Manager's Options menu. Session Manager displays the Keyboard Options dialog box 2. Drag the arrow in the Percent Volume slider right or left, or move the pointer to a location on the slider and click MB1. 3. Click on the Bell Volume Enable button (this is the default). 4. Click on OK or Apply. To turn off the bell, click on the Bell Volume Disable button. Click on either the OK or Apply button.