APP-51 Electronic Hook Switch
Poly APP-51 Electronic Hook Switch Cable for remote desk phone call control (answer/end). This cable works with Polycom desk phones and may work with additional manufacturers, check with the Poly compatibility guide 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. Part Number: 38439-11.