This article covers just Teams-specific issues, so if you haven't already reviewed Why didn't Read join my meeting? you are strongly encouraged to do so.
If you have Read configured to join your Teams meetings, but you're not seeing it join or request to join when you get on the call, and trying to add it manually gives you an error saying the assistant is having trouble joining, you may not have permission to allow Read (an anonymous, unverified guest) to join the meeting. In this case, you should see the meeting listed on your incomplete reports page with the message "Read not admitted to the meeting within 10 minutes of scheduled start time."
If this occurs, your meeting organizer may have some Teams settings configured that are preventing Read from joining. See below for more details.
Anonymous users not allowed to join
A Teams user or organization may have configured their settings to block anonymous users from joining their meetings. For anonymous meeting join to work:
- The “Anonymous users can join a meeting” setting at the organization-level must be turned on
- The meeting organizer must be assigned a Teams meeting policy where the “Anonymous users can join a meeting” control is also turned on
You can read Microsoft's instructions for enabling these settings here: https://learn.microsoft.com/en-us/microsoftteams/anonymous-users-in-meetings
Anonymous users require verification
There is a similar setting that will allow anonymous users to join but requires them to pass a human verification check, also known as a CAPTCHA. Read is not able to bypass this check. To learn more about this setting and how to disable it, see this article: https://learn.microsoft.com/en-us/microsoftteams/join-verification-check