Poly APC-4 Electronic Hook Switch for Cisco CS Series HDD capacity_8000 GB DeepCool PQ850M 850W 80 PLUS

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Poly APC-4 Electronic Hook Switch for Cisco CS Series HDD capacity_8000 GB DeepCool PQ850M 850W 80 PLUSPoly APC 4 Electronic Hook Switch for Cisco CS Series The Poly APC 4 is a legacy electronic hook switch designed to connect selected Plantronics CS wireless headset systems to compatible Cisco Unified IP phones. It enables remote incoming call notification, answering and ending through the headset, helping users manage supported desk phone calls without returning to the telephone. The electronic connection also removes the need for a mechanical