Cisco Phone Compatible Plantronics Wireless - CS540 Bundle with Electronic Remote Answering (EHS) - 84693 |For Cisco phones: 7942g, 7945g, 7962g, 7965g, 7975g, 6945 Bundle of 2 items - Plantronics CS540 and Electronic Remote Answerer Interface Cable Adapter (EHS) - For usage only with Cisco phone mentioned below Compatible Cisco IP phones: 6945, 7821, 7841, 7861, 7942G, 7945G, 7962G, 7965G, 7975G, 8841, 8851, 8861 Premium wideband audio quality Range up to 350 feet away for maximum mobility Answer calls with "one-touch" push button on the headset