Genuine Plantronics Spare headset for the Plantronics CS520
Will not function without the CS520 base
part# WH350, 86920-01
How to pair/subscribe the new CS520 spare headset to the base:
Simply put your headset back in the CS520 base. The power/subscription light (white light on the base) flashes during the subscription/pairing process and turns solid when the headset pairs successfully.
important: Only the last paired headset will work, so you will have to repeat this process whenever you need to use a new CS520 headset with the same system.