The following information is from Microsoft provides examples on what an external user will experience when joining a Teams meeting. Anyone can join a Teams meeting as long as they have an email address. Teams can be accessed through Mac, iOS, Android and Windows devices.
The button below will take you to the Microsoft Teams page where you can enter a Meeting ID & Passcode
You can join a Teams meeting anytime, from any device, whether or not you have a Teams account. If you don't have an account, follow these steps to join.
If you're having trouble joining a Teams meeting, try I can't join a Teams meeting.
Note: For some meetings, admin settings prevent people who are not signed in from joining the meeting.
Even if you don't have a Teams account, you can still join a Teams meeting on the mobile app. Here's how: