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 Avaya desk phones and may work with additional manufacturers, check with our Product Configurator for more information. Replacement Note: The APV-66 EHS cable replaces the APV-65 cable and features compatibility with the Plantronics On-line Indicator accessory.

Compatible Poly Wireless Headsets

The APV-66 Electronic Hook Switch (EHS) adapter is designed for use with various Poly (formerly Plantronics) wireless headset systems, providing full remote call control for a seamless, hands-free experience. Supported headset models include:

• CS500 Series: CS510, CS520, CS530, CS540
• Savi Series: Older Savi 700 Series models (W710, W720, W730, W740, W745) and legacy Savi Office models (WO100, WO200, WO300, WO350)

When paired with compatible desk phones, the APV-66 adapter allows users to answer and end calls directly from their headset, improving productivity and mobility in office and contact center environments.

How a hook switch works

A hook switch is like a smaller, smarter version of a handset lifter. It is an electronic switch that connects between your handset and your headset base station. When you press the appropriate button on your headset it sends a signal to your phone to answer or hang up on a call. This means you can now start or end conversations from anywhere in the office using your wireless headset, without having to return to your desk.
Unlike a handset lifter, a hook switch contains no moving parts which means they answer/leave calls much quicker than a lifter, and are also theoretically more reliable. However not all hook switches work with all phones, so make sure you choose the right model to work with your handset.