Do you want the best headset? 
Before setting up your Plantronics CS510, C052 or CS520 wireless headset, you need to identify what phone you have. This will help you go through the proper setup. Click either link below based on the criteria below.
Setup WITHOUT headset port
Follow this setup as well when using the Handset Lifter.
Setup WITH headset port
3 comments
Anthony Lopez
The A/C adapter for my C052 blinks green when plugged in, not sending power to the port. Is the cable the issue or the port ?
Glenn Carter
It’s the long grey button, below the button that you turn the unit on with.
Maria Zamora
How to I put my headset on mute. I’m not sure which button of the headset mutes mine. I have the Plantronics C052.