Calisto 620/620-M Troubleshooting: Distorted Audio
QuestionI experience poor audio quality with my Calisto 620/620-M when I use it to listen to music/media in Windows or Mac OS. What can I do?
This is a known issue with the Calisto 620 and 620-M.
Engineering has corrected the issue in a firmware update (USB firmware 470 and base firmware 02.00), which will be available via the Spokes Update Manager starting 3/22/13. Please note that the firmware update is for the speaker only - there is no update to the Bluetooth adapter.
To update your firmware,
- Connect the Calisto 620/620-M to your PC using the USB charging cable.
- Open your Spokes Update Manager by clicking Start > All Programs > Plantronics > Plantronics Update Manager.
This firmware also enables local mute with unsupported softphones.