1. Adjust speaking 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 the top drop down menu > adjust microphone slider.
  2. Adjust listening volume on headset or speaker: press the down volume button on headset or speaker control.
  3. 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.
  4. Adjust Sidetone in Windows (this works with corded headsets only). From Windows desktop > right-click (not left click) Speaker icon (beside time clock in lower-right corner of screen) > select Playback devices > right-click on  your headset model in the list > Properties > Levels tab > adjust sidetone slider.