This is the Plantronics CS500 and Savi series APC-82 Electronic Hookswitch (EHS) cord for Cisco 8941, 8945, 8945G IP Phones. It allows you to communicate electronically with the phone, eliminating the need for the mechanical HL10 lifter. the Plantronics APC-82 is compatible with these Plantronics wireless headset models: Plantronics CS540, CS510, CS520 , Plantronics Savi WO100, Plantronics Savi WO200, Plantronics Savi WO300 Plantronics Savi WO350 , Plantronics Savi W740, Plantronics Savi W710 , Plantronics Savi W720 , Plantronics Savi W730 , Plantronics Savi W745 This EHS adapter only works with the following Cisco IP phones: Cisco 8941, 8945, 8945G phone models Old Poly part # 201081-01 New HP part # 8H981AA If you have Cisco IP 8961 9951 9971 models, you need the APU-71 instead Note: Do not order this part if you don't have the listed Cisco phone models Cisco software requirements Cisco Phone Firmware version is 9.4.1 Important: Cisco phone setup On your Cisco phone, enable “E-Hookswitch connected” under Preferences menu.
