General Information Manufacturer: HP Inc. Manufacturer Part Number: 85Q60AA Manufacturer Website Address: http://www.hp.com Brand Name: Poly Product Model: APP-51 Product Name: APP-51 Electronic Hook Switch Cable Marketing Information: Electronic Hook Switch Cable for remote desk phone call control (answer/end). This cable eliminates the need for a HL10 Handset Lifter. This cable works with Poly desk phones and may work with additional manufacturers, check with our Product Configurator for more information. Replacement Note: The APP-51 EHS cable replaces the APS-50 cable and features compatibility with the Plantronics On-line Indicator accessory. Product Type: Phone Cable Technical Information Device Supported: Phone Headset Features: Electronic Hook Switch Physical Characteristics Color Family: Black Product Color: Black Miscellaneous Compatibility: Polycom CS500/W700 Series Wireless Headsets