Poly Adapter APD-80. Adapter type: EHS Adapter. RJ-45 - RJ-11. Main color: Black. The Plantronics 87327-01 EHS Module APD-80 is a powerful electronic hook-switch adapter that revolutionizes call control for your landline phones. With this original accessory from Plantronics, designed for the Savi and CS500 series, you can conveniently answer and end calls without relying on a handset lifter. Enjoy the freedom and efficiency this EHS module provides and experience seamless communication without interruptions. Enhance your telephone system with the Plantronics 87327-01 EHS Module APD-80 and optimize your workflows.