You can disable the notification sound that plays when dial-in users join or leave a Teams meeting. The steps differ slightly depending on whether the meeting is already scheduled or new.

🔕 For an Existing Scheduled Meeting:

1. Open Microsoft Teams.
2. Click Calendar from the left-hand menu.
3. Select the meeting and click Edit.
4. At the top of the screen, click Meeting Options.
5. In the Meeting Options screen, go to the Roles section.
6. Toggle “Announce when dial-in users join or leave” to Off.

🔕 For a New Meeting:

1. Open Microsoft Teams.
2. Click Calendar > New Meeting.
3. Fill in meeting details and send the invite.
4. After sending, open the meeting and follow the same steps above to access Meeting Options and disable the announcement toggle.