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Amazon.com: Headset Adapter U10, 26716-01 to Connect Cisco Phones' RJ9 Modular Jack for Plantronics H Series Quick Disconnect Headsets : Electronics
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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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Cisco Compatible Plantronics Wireless - CS540 Bundle with Electronic Remote Answering (EHS) - 84693 |For Cisco VoIP phones: 8841, 8851, 8861, 7821, 7841, 7861, 7942g, 7945g, 7962g, 7965g, 7975g, 6945
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