EPOS Sennheiser CEHS AV 04 Avaya EHS Adaptor

The EPOS CEHS AV 04 (Manufacturer Part Number: 1000741) is a specialized electronic hook switch (EHS) adapter cable designed to provide remote call control for users of Avaya and Grandstream desk phones. This plug-and-play solution allows you to answer or end calls with a single button press directly from your EPOS wireless headset, including models in the IMPACT SDW 5000, DW, SD, and D 10 series. By enabling remote ringtone notifications and electronic call management, it completely eliminates the need for a mechanical handset lifter like the HSL 10. The cable is broadly compatible with Avaya 14xx, 94xx, 95xx, 96x1 IP, and J-series phones, as well as Grandstream GXP 16xx and 21xx models. Its 2026-current design features enhanced shielding and durable connectors, ensuring a reliable, interference-free connection for professionals who need mobility in busy office environments.