The Plantronics APP-5 Electronic Hook Switch Cable enables remote call answering with your older Plantronics CS (CS50, CS55, CS351n, CS361n) series wireless headset. Meaning, when a call comes in, instead of running back to your Polycom phone, you can press one button on your headset to answer/end calls! If you're unsure about compatibility, contact us today and we'll be here to help.
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