Voyager 510S/510SL/510SL+: Listen Volume, Speak Volume, and Mute Button
- Adjust the listen volume adjust +/- button to a comfortable level.
- If you cannot find a comfortable listen level, try different settings (1-4) on the listen volume major adjust switch until a satisfactory sound level is experienced.
This setting only adjusts the headset listen level on calls placed using a desk telephone and cannot adjust the headset listen volume when used with a mobile phone.
- Adjust the speak volume fine adjust buttons until the level is comfortable for the recipient.
- If a larger change is needed, try different settings (A-D) on the speak volume major adjust switch on the bottom of the base.
This setting only adjusts the headset speak level on calls placed using the desk telephone and cannot adjust the headset speak volume when used with a mobile phone.
Too long a press (more than 3 seconds) will power off the headset.