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A: Yes, you can. Simply send the non-OTC email a link to your meeting, and they will be able to join it. Unlike OTC accounts, however, you will need to admit this third-party account into your meeting via the Participants menu. OTC accounts do not need to be admitted and join meetings automatically, provided they are logged in with their OTC account.
Feel free to call or email the IT Help Desk for assistance with Microsoft Teams, to request additional information about Teams, or to ask questions not covered by these articles.