1. Adjust listening volume on headset (or your speaker): press the up volume button on headset or speaker control.
  2. Adjust listening volume in Windows: from Windows desktop > left-click Speaker icon (beside time clock in lower-right corner of screen) > left-click and drag slider to adjust volume.
  3. Adjust listening volume in SfB: left-click the audio icon at the bottom-left corner of main SfB window > Audio Device Settings > verify your headset or speaker is selected in top drop down menu > adjust speaker slider.