Invitees may join a Teams meetings from any device, whether or not they have a Teams account. Invitees without a Teams account should follow these steps to join as a guest.

1. Go to the meeting invite and select Join Microsoft Teams Meeting.
2. A web page will open offering two choices: Download the Windows app and Join on the web.  As of August 5, 2020, Microsoft documentation states that audio, video, and sharing features are fully supported in Google Chrome, Microsoft Edge, and Microsoft Edge (Chromium-based). The most current information on MS Teams is available here. Internet browsers may ask permission for Teams to use the computer's microphone and camera. Be sure to allow it in order to be seen and heard during the meeting.
3. Fill the provided identification prompts and choose audio and video settings. If the meeting room (or another device connected to the meeting) is nearby, choose Audio off to avoid disrupting. Select Phone audio if you want to listen to the meeting on your mobile phone.
4. To join the meeting, click Join now.