EHS adapter Sennheiser CEHS-CI 01 — black, compatible with Sennheiser headsets (model CEHS-CI 01)

The Sennheiser CEHS-CI 01 EHS adapter — black — is an electronic hook switch accessory designed to integrate Sennheiser headsets with compatible desk phones and unified communications systems. It enables remote call control (answer/end) from the headset, allowing seamless hands-free operation and improved workflow in office and contact center environments. The cable supports EHS functionality when used with Cisco EHS-compatible phones and selected Sennheiser wireless headset series; consult the headset compatibility guide for details.

Advantages

This EHS adapter provides reliable electronic hook switch signaling to enable call control directly from a Sennheiser headset, reducing the need to interact with the desk phone during calls. It simplifies headset-phone integration, is compact and unobtrusive in black finish, and minimizes cable clutter when installed as part of a headset setup. By supporting remote answer/end functionality, it helps maintain efficient call handling in high-volume environments.

Suitable for

• Office work requiring hands-free phone calls
• Contact centers and customer support teams
• Unified communications setups with compatible desk phones
• Users of compatible Sennheiser wireless headsets who need remote call control

Key specifications

• Function: electronic hook switch (EHS) adapter for remote call control (answer/end)
• Color: black
• Compatibility notes: designed for use with Cisco EHS-compatible desk phones and compatible Sennheiser wireless headset series when used with the appropriate cable
• Form factor: inline adapter/cable accessory for headset-phone integration
• Typical use environment: office and contact center integration with desk phones and unified communications

How to use

Connect the CEHS-CI 01 EHS adapter between a compatible Sennheiser headset base or dongle and a Cisco EHS-compatible desk phone following the manufacturer’s connection diagram. Once connected and configured according to phone and headset documentation, the adapter enables answering and ending calls from the headset control. Ensure firmware and phone settings support EHS operation and consult the headset compatibility guide if call control does not function as expected.

Recommendations

Verify compatibility with both your desk phone model and Sennheiser headset before installation. Use the original manufacturer cables and follow the phone vendor’s EHS setup instructions to ensure proper signaling. For contact center deployments, test a single workstation first to confirm behavior with your telephony platform and headset firmware.