Oftentimes, when in a meeting, you may want to revisit the video call later for reference. For those instances, Teams offers you the ability to record meetings to have access to the audio, video, and screen sharing activity at a later time. 

The service saves the recorded meetings to Microsoft Stream for secure sharing across your team. 

To record an ongoing meeting, hit the ellipsis (three-dot) button and select Start Recording. Once done, follow the same steps to stop recording.