Poly APP-50 Electronic Hook Switch for Poly IP Phones Savi CS500 Series Brand_CSB And several APC Smart-UPS models

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Poly APP-50 Electronic Hook Switch for Poly IP Phones Savi CS500 Series Brand_CSB And several APC Smart-UPS modelsPoly APP 50 Electronic Hook Switch for Poly IP Phones, Savi and CS500 Series The Poly APP 50 is a legacy electronic hook switch cable designed to connect compatible Poly wireless headset systems to selected Polycom and Poly IP phones. It enables remote call notification, answering and ending through the headsets call control button, helping users manage desk phone calls without lifting the handset. The APP 50 was originally developed for Savi Office