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Plantronics | CS540 & Cisco APC-43 Electronic Hook Switch (EHS) Adapter Combo Package | 84693-01 & 38350-13
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Sennheiser SD PRO1 - Deskphone Cordless Headset with Avaya EHS Adapter | Compatible Avaya Models: J139, J169, J179 1400, 9400 & 9500 Series
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Jabra LINK 20 Electronic Hook Switch (EHS) (for Avaya, Alcatel, Toshiba, Shortel) - Headsets Plus Store
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Yealink Compatible Jabra Engage 75 Wireless Mono Headset Bundle with EHS Adapter | SIP-IP T-Series Desk Phones, Bluetooth, USB, Skype for Business | 13-hour battery, Busy Light | #9556-583-125-YEA
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