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
APD-80 is designed for Plantronics Wireless Savi and new CS500 series products.
Supported Phones Grandstreem
GXP2124, GXP2130, GXP2135, GXP2140, GXP2160, GXP2200, GXV3240, GXV3275