Instructions to join the meeting as a "Guest"
Tap Join Microsoft Teams Meeting
Do not select Open Microsoft Teams tap “Cancel”> Select “Continue on this browser” or “Join on the Web Instead”.
In the center of your screen enter “your name “or “Guest" and tap Join Now
Once you are in the meeting you can turn your mic and video on or off by tapping the center of your screen to show meeting controls.
Tap again to hide them.