Hi Mark Vila,
I understand how frustrating it is when you can be heard clearly but can’t hear anything back. Let’s check a few other things that are commonly missed with Bluetooth earpieces like the Plantronics / Poly 5200. Have you already tried the Q&A Assist suggestions? In addition, please try the following.
Step 1: Disable Windows audio enhancements for the earpiece
Sometimes enhancements block sound on mono Bluetooth devices.
- Go to Start > Settings > System > Sound
- Under “Output”, select your 5200 earpiece
- Click “Audio enhancements”
- Set it to “Off”, then test the audio again
Step 2: Check Communications settings
Windows may be automatically muting playback when it detects a call device.
- Press Windows + R, type
mmsys.cpl, press Enter
- Go to the “Communications” tab
- Select “Do nothing”
- Click Apply > OK, then reconnect the earpiece
Step 3: Temporarily disable Hands‑Free Telephony
Some earpieces only output audio correctly when used as a headset device.
- Go to Start > Settings > Bluetooth & devices > Devices
- Click the 5200 earpiece
- Select “More devices and printer settings”
- Right‑click the earpiece > “Properties” > “Services” tab
- Uncheck “Hands‑Free Telephony”, then click Apply
- Disconnect and reconnect Bluetooth, then test audio
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