Plantronics APC-4 Headset Hook Switch Control Adapter

Plantronics APC-4 Headset Hook Switch Control Adapter 37978-01 transforms your Cisco Unified IP phone experience through remote answer/end and ring alert.

APC4 Electronic Headset Hook Switch Control Adapter works with the following headsets:

• Plantronics CS50, CS55, CS70
• Plantronics Voyager 510S
• Plantronics SupraPlus Wireless