Electronic Hook Switch- communicates electronically with the phone, eliminating the need for a conventional mechanical HL10 lifter.
The EHS adapter is unique to a specific Telephone application & Wireless product
APC-43 is designed for Plantronics Wireless Savi and new CS500 series products.
Supported Phones Cisco
6945, 7821, 7841, 7861, 7942G, 7945G, 7962G, 7965G, 7975G, 8811, 8841, 8851, 8961, 8961, 9951, 9971