To enable Closed Captioning in Microsoft Teams:
- Join a Teams meeting or a group call (audio or video)
- Once joined or in the group call, select the 3 ellipses (More actions)
- Select Turn on live captions

Please Note: This setting controls the "Turn on live captions" each participant can turn on or off the live closed captions. It is recommended for the Host to remind participants about this feature because it is a self-service feature (each user has to turn-on or turn-off live captions on their end).