The is a portable, high-quality speakerphone designed for unified communications (UC). It connects via USB and provides wideband audio for calls, web conferencing, and multimedia playback. While the C100s is a legacy device, it remains fully functional on Windows 10 with the correct driver configuration.
Go to the tab and lower the slider to around 50–70% . Issue 3: The Device is Not Recognized (Error Code 43)
: Some users report better stability on Windows 10 when using a powered USB hub, as the
This guide outlines exactly how to configure your Polycom C100s portable speakerphone to achieve echo-free audio on a modern Windows 10 system. Technical Specifications Overview Polycom Communicator C100s Windows 10 Driver
Under the dropdown menu, select the corresponding Polycom Communicator entry.
If the device is recognized but audio quality is poor:
Under the dropdown menu, select Polycom Communicator C100s (or USB Audio Device ). The is a portable, high-quality speakerphone designed for
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: The device was highly optimized for Skype; newer apps like Teams or Zoom may not support the physical hardware buttons even if the audio works .
This guide outlines exactly how to install, configure, and use your C100s speakerphone on a Windows 10 system. The Core Challenge: Windows 10 Driver Support Go to the tab and lower the slider to around 50–70%
pnputil /add-driver C:\Path\To\usbaudio.inf pnputil /install-device "USB\VID_045E&PID_07XX" (Replace with actual C100s hardware ID found in Device Manager)
Go to Control Panel > Sound > Recording Tab . Double-click your USB Audio Device, navigate to the Levels tab, and ensure the microphone slider is pushed up to 80–100%. 3. Audio Crackling or Popping
Now, in 2026, the C100s is a relic. Windows 11 has come and gone; Windows 12 whispers on the horizon. The manual driver hack works less reliably with each cumulative update. Microsoft’s new ACX audio model finally obsoletes the last C-Media legacy hooks.