VoiceJoy Standard 3.5mm Jack Smartphone Headset Headphone Cable Converter to RJ9 Plug for Cisco Phones

Simply plug the RJ plug into the headset port on your IP Phones, and insert your exist the standard 3.5mm smartphone headset into the other end adapter, now you are ready to make / receive phone calls on your IP phones with your standard 3.5mm smartphone headset headphones. Works for Phones: Plantronics Amplifier: M10, M12, M22 & MX10 Vista Modular Adapters Cisco IP Phones: 7931G, 7940, 7940G, 7941, 7941G, 7942, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962, 7962G, 7965, 7965G, 7970, 7970G, 7971, 7971G, 7975, 7975G 6921, 6941, 6945, 6961, 7821, 7841, 7861 8811 8841 8851 8861 8941, 8945, 8961, 9951, 9971