team mysterious ringing

Was there ever an identified fix for this?  I am having the same issue.

I think I might have found the solution to this issue, at least it works for a few colleagues here (in our case).

EDIT (2023/Mar/24): all right, so now I have more experience on this topic, I'll update below here my conclusions.

What's going on (justification, from my experience):

• MS Teams keep playing the ringtone after hangup of the call.
• Similar to when you are playing music or a video and eventually an incoming call comes in, MS Teams stops and then resumes the audio playback of the background music, I have confirmed that MS Teams it's also (mistakenly) stopping his own ringtone and resuming itself after the call: https://answers.microsoft.com/en-us/msteams/forum/all/teams-pauses-videoaudio-playing-in-teh-packground/b36969ac-2596-40b5-83fa-8af648aef4b6
• I have verified this issue was only happening when the remote side hang-up earlier than me and (at least in my case) never ocurring when I hang-up earlier, plus a combination of the wireless headphones reaction speed (i.e. mostly through Bluetooth profiles HFP/A2DP auto-switching which is a slow process and the issue is reproduced most times).

So far there are only workarounds (as far as I collected):

• (a) Always working (at least in my setup): in order to avoid it, I rush to first hang-up the call myself (avoid the remote side firstly hang up).
• (b) Always working (alternative): if it already occurred and you need to stop it, I enter Team's settings > Devices, make a test call to the robot, and hang up first.
• (c) Most times working (let's say 70% of times): to stop it, on your headphones press the button to pause song/hang-up and the tone will stop playing inmediately. Depends if the tone was detected by the windows built-in player, you can check this by pressing on your headphones vol+/vol- and see if you only see the dark volume slider (upper left) or both the volume and media playing controls
• (d) Most times working (alternative): if you dont have that button on your headphones, in your keyboard press the "volume up/down" keys, a black pop-up will appear that will allow you to adjust the volume and pause the reproduction. Again it works only when the built-in player has linked to the playing sound:
• (e) Initially worked (only for a while):
• (e.1). In Windows 10, open the sound configuration with either ONE option:
  • (A) (techie option) Press Control+R and run "mmsys.cpl"
  • (B) (simpler option) In the start menu type search for "mmsys.cpl"
  • (C) (user friendly) left click on the loudspeaker icon near the time on the task bar (bottom right), select open sound settings, and choose the blue link on the right column named Sound Control Panel.
• (e.2). Then select the "communications" tab, select the option "Do nothing" and ensure that Teams gets the setting. I suggest to restart to avoid the reproduction loop (see later). However, no matter if the configuration in Control Panel is just to reduce the volume by 80% (which is the default in Windows), to stop it, or do nothing, it is confirmed that MS-Teams does not follow this setting.
• (f) Initially worked (only for a while): another user mentioned disabling the autoplay feature: https://support.lenovo.com/pl/en/solutions/ht502955
• (g) And for sure, if your wireless headphones have dual connection protocols (such as propietary dongle and Bluetooth), test with the original brand dongle versus avoiding the generic bluetooth (which has aditional considerations out of this scope).

If it worked for you click the button "helpful" (below), so if it generally works, then may be the creator of the thread would mark it as response workaround.

Hi David,

Please try the below steps to avoid common issues due to app cache:

1. Manually restart the app by right-clicking the icon in your taskbar (Windows) and selecting Quit. After you quit, click the app icon to open it again.
2. Go to File Explorer, delete any of the files in the following locations:

• %AppData%\Microsoft\teams\application cache\cache

• %AppData%\Microsoft\teams\blob_storage

• %AppData%\Microsoft\teams\databases

• %AppData%\Microsoft\teams\cache

• %AppData%\Microsoft\teams\gpucache

• %AppData%\Microsoft\teams\Indexeddb

• %AppData%\Microsoft\teams\Local Storage

• %AppData%\Microsoft\teams\tmp

Besides, Keep Jabra Evolve headset and quite from MS Teams desktop app. Access the 'Teams Web App' https//teams.microsoft.com, use "Use the web app instead" option to open teams in a browser and check whether you still hear the mysterious ringer. These steps will help us to isolate the issue with the desktop app.

Regards

Nik

Interesting -

Apparently it is the unplugging of devices that triggers these ghost calls - and apparently whether the devices are wired or not. In my case, it is Bluetooth headphones, as with some other folks.

So where is the MS response/fix for this?

I have the same issue as described by Neil. Only way to make it stop ringing is to close Teams in the system tray.

Any updates?