Adapter Cable for Connecting Plantronics Wireless Headsets & EHS to Cisco 7900 Phones that have a Sidecar Expansion Module If the Cisco phone is equipped with a 7914, 7915, or 7916 expansion module (sidecar), this adapter cable is needed for the EHS to work Plug the Cisco expansion module into the Cisco telephone AUX port, then plug the APC-42 EHS cable (for W700 series) or APC-4 (for CS series) into the expansion module using this adapter. One adapter required per expansion module. Plantronics wireless headset connects to APC-42 – this allows user to have remote call answer/end control 9 inches long Formerly model number 40287-05 Genuine Poly Accessory BTP Model: PL-85638-01MFR Part: 85638-01, 85S12AA
