Plantronics Savi/CS500 series In-Use Busy Indicator Light (OLI). Compatible with
Let Your co-workers will know you're on a call when they see your indicator light on.
Important: This busy light is NOT compatible with Plantronics M12 Vista amplifer or the new Plantronics M22 amplifier
Need extra length? If the 4' cable length is not long enough, we also carry the 6 feet exenstion cable for the busy light