In combination with specific Avaya EHS-compatible phones, the CEHS-AV 03 cable for electronic hook switch is compatible with the wireless IMPACT SDW 5000, DW, SD and D 10 headset Series. Please check headset compatibility guide for more information. Manufacturer: EPOS. Manufacturer Part Number: 1000740. Brand Name: EPOS. Product Model: CEHS-AV 03. Product Name: Avaya Electronic Hook Switch Cable CEHS-AV 03. Product Type: Phone Cable. [Technical Information] Device Supported: Phone. Wireless Headset. Electronic Hook Switch. IP Phone. [Miscellaneous] Compatibility: EPOS Wireless Headsets: Impact SDW 5000 Series Impact DW Series Impact D 10 Series Impact SD Series Avaya IP Phones 1600/9600 Series: 1603 IP 1603 SW IP 1608 IP 1616 IP 9608 IP 9610 IP 9620 IP 9630 IP 9640 IP 9650 IP 9670G IP Avaya 1400/ 9400/ 9500/ 2400/ 5400 series: 1403 1408 1416 9404 9408 9504 9508 2420 Digital (not IP) 2410 5410 (Non IP) . Environmentally Friendly: Yes. Environmental Certification: WEEE. Country of Origin: China.