In Microsoft Teams meetings, there is no option to default the "Include sound" toggle to "On."
There's also no way to set our organization's default "Include Sound" to "On".
If you want to get this feature, you can send a feedback directly to Microsoft Feedback to add it in future updates.
Many features of our current products are designed and upgraded based on customers’ feedback. With requirements like this increase, the problem may well be released in the future.
Thanks for your understanding and support.
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