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Cisco Compatible Plantronics ENCOREPRO 540 (HW540) Direct Connect for 7940, 7941G, 7942G, 7945G, 7960, 7961, 7961G, 7962G, 7965G
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Amazon.com: Plantronics - EncorePro HW540 Convertible Headet - Wired Convertible (3 wearing styles) Headset with Boom Mic - Connect to your PC and/or Deskphone : Electronics
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Amazon.com : Polycom Compatible Plantronics VoIP Noise Canceling EncorePRO 540 HW540 Headset Bundle for IP320, IP321, IP330, IP331 : Office Products
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