Additional meeting and call-related features and issues within Microsoft Teams for business
Hi Stef, my name is Jose. I'm an Independent Advisor and a Teams user like you. I'll be glad to help you today.
This a feature that was launched this month. If you are in a meeting using one device, you can open Teams on the device you want to transfer the meeting. You will see a join button. Select it and that's all.
You can get additional information using this link
https://support.microsoft.com/en-us/office/join...
Please let me know if you need any further assistance.