The CEHS-AV 03 cable is designed to make calls convenient to manage – thanks to easy set-up, single-button operation and efficient answering/ending of calls. CEHS-AV 03 is compatible with the wireless IMPACT 5000, IMPACT DW, IMPACT SD and IMPACT D 10 headset Series in combination with the following EHS-compatible Avaya phones: IP phones – 16xx series, 94xx series, 95xx series and 96xx series; Digital phones ¬- 14xx series, 24xx series and 54xx series. Check headset compatibility guide for more information.