Poly APC-43 EHS Cable for Cisco/Panasonic phones. (Replaces APC-42).
Electronic Hook Switch Cable for remote desk phone call control. Compatible with Voyager Legend CS, MDA220 USB, CS500/CS500XD series, SAVI 700 series and Savi 8200 Series wireless headsets.
See Poly EHS Cable Guide
Warranty - 1 Year