Plantronics Amplifier Cable for NEC, Cisco Polycom EHS Extension

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.auto-style1 { font-family: Arial, Helvetica, sans-serif; } .auto-style2 { font-family: Arial, Helvetica, sans-serif; font-size: 9pt; } Amplifier Cable, Adapts M12/M22, MX10, SP, P LX to NEC or equivalent telephone systems. Previous Part# 40287-05 (stamped as 88566-05 on the cable) Also used as an extension cable to connect the APC-4 (APC-43) control connection into the Cisco expansion module 7914/7915/7916. It extends the Plantronics APC-43 audio input to reach the headset jack on the phone. When using a Polycom IP phone sidecar and the Plantronics APP-51 EHS. You require 85638-01 extension cable so the APP-51 cable can reach sidecar. Old Poly part # 85638-01 New HP part # 85S12AA Show more