Product Introduction
When a wireless headset cannot answer or end calls directly from the headset button, the issue is often caused by missing or incompatible Electronic Hook Switch (EHS) connectivity. The Poly Plantronics APU-75 (202678-01) EHS USB adapter cable is designed to enable remote call control between compatible Poly wireless headset systems and supported desk phones or UC platforms, ensuring seamless hands-free communication in office environments.
Application Scenarios
- Corporate office VoIP communication systems
- Call center headset deployment environments
- Desk phone + wireless headset integration setups
- Microsoft Teams / Skype for Business UC systems
- Enterprise communication workflows requiring remote call control
Technical Specifications
| Brand | Poly (Plantronics) |
| Model | APU-75 |
| Part Number | 202678-01 |
| Type | Electronic Hook Switch (EHS) USB Adapter Cable |
| Interface | USB + QD / Desk Phone Control Interface |
| Function | Remote Answer / End Call Control |
| Compatibility | Poly CS500 / CS500 XD / Savi Office Series |
| System Support | Selected IP Phones & UC Softphones |
| Condition | Enterprise Communication Accessory |
OEM Replacement Compatibility
- Poly CS510 / CS520 / CS530 / CS540 wireless headsets
- Poly Savi 7210 / 7220 Office series
- CS500 / CS500 XD DECT headset systems
- IP desk phone UC integration systems (Mitel / select models)
- Replacement for APU-75 / 202678-01 EHS cable setups
FAQ
Q1: Is this a normal USB headset cable?
A: No. This is an Electronic Hook Switch (EHS) control cable, not an audio cable.
Q2: What does EHS do?
A: It allows users to answer and end desk phone calls directly from a wireless headset.
Q3: Is it compatible with all phones?
A: No. Compatibility depends on supported IP phones and Poly headset base systems.
Poly Plantronics APU-75 (202678-01) is an Electronic Hook Switch USB adapter cable designed for enterprise communication systems. It enables remote call control between Poly CS500 and Savi wireless headset systems and compatible desk phones or UC platforms, allowing users to answer and end calls directly from their headset in office and call center environments.
Why Buy From OEM Power US?
- US warehouse fulfillment
- Orders ship within 24 hours on business days
- Every adapter is inspected and tested before shipment
- 1-year warranty included
- 30-day return policy
- Trusted marketplace seller since 2007
