How external / Guest users can participate in Microsoft Teams meetings?
- Anyone with a Phone
- A User With No Microsoft Account at all – Just Need An Email
- A User With any Office365 account, as a Guest User
By @ mentioning the channel name
Team Owner and admins
Just click the ellipsis next to any channel name and select Get email address. That generates an email address for the channel.
Click on the attach icon in the conversation menu and pick the file from the local computer