Secondary ringer recently stopped working on my Mac.

Occasional Contributor

I'm using Teams on an iMac running Big Sur. I use a Plantronics USB headset as my audio device for speaker and microphone, with 'built-in output' set as my secondary ringer. This combination of settings worked fine until a few weeks ago, when the secondary ringer suddenly stopped working. I've tried all the hints and tips I can find online, to no avail.  

3 Replies
I have the same issue.
Same issue for me, please fix it!

We've got the same issue without any solution. This occurs for everyone in the company. Now, headphones cut off every 4 minutes.