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Amazon.com: VoiceJoy QD Adapter HIS Cable for Plantronics Headsets QD Adapter for Yealink Phones and Workable for Avaya IP 1608, 1616, 9601, 9608, 9611, 9611G, 9620, 9630, 9631, 9640, 9641, 9650, 9670 : Electronics
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RJ9 Phone Headset - Cost Effective Monaural Headset with Smart Cord for Cisco Avaya Polycom and Most Phones - Walmart.com
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Deluxe headset for Avaya 9640, 9640G, 9641, 9641G models. Best Phone headset + Avaya to Plantronics QD cord.
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Amazon.com: IPD HIS-02 Headphone Cable Connector with QD Headset Adapter and RJ9 Cord Jack Plugs Intended for Desk Phone Avaya IP1608,1616, 9608G,9611G, 9610,9620, 9620L, 9620C,9630,9630G, 9640,9640G, 9650,9670 : Electronics
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Amazon.com: IPD HIS-02 Headphone Cable Connector with QD Headset Adapter and RJ9 Cord Jack Plugs Intended for Desk Phone Avaya IP1608,1616, 9608G,9611G, 9610,9620, 9620L, 9620C,9630,9630G, 9640,9640G, 9650,9670 : Electronics
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HIS-1 Headset Cable with Mute for Plantronics Headsets | GTW HIS-1 - 72442-41 M | For Avaya 1608,1616, 9610, 9620, 9620L, 9620C, 9630, 9630G, 9640, 9640G, 9650, and 9650C IP phones
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Amazon.com: HIS Adapter Cable Compatible with Plantronics QD Headset to Avaya J100, 1600, 9600 IP Phones: 1608 1616 9608 9610 9611 9620 9621 9630 9640 9641 9650 9670 : Electronics
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Amazon.com: HIS-1 Quick Connect Disconnect Cable to RJ9 Plug Adapter Replacement QD Release Coil Cord Extension for Plantronic Headsets Compatible with Avaya IP 1608, 1616, 9610, 9620, 9620L, 9620C, 9630, 9630G : Electronics
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