Compatible Poly Wireless Headsets

The APP-51 Electronic Hook Switch (EHS) adapter is compatible with a wide range of HP Poly (formerly Plantronics) wireless headset systems, enabling remote call control for enhanced flexibility and productivity. Supported headset models include:

• CS500 Series: CS540 and discontinued models such as CS510, CS520, and CS530
• Savi Series: Savi 7200, 7300, and 8200 Office Series, as well as legacy W700 models
• Voyager Series: Office Series models including the Voyager 4200 and Voyager 5200 (when used with a Voyager Office Base)
• Voyager Legend CS

These Poly headset systems, when paired with the APP-51 adapter, provide full Electronic Hook Switch (EHS) functionality, allowing users to answer and end calls directly from their headset for a smooth, hands-free communication experience.

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.