To join the a call that you were invited to, you have two options:
1- Join by link
With this option, you simply have to click on the link in the invite. The link will have the words “Join Microsoft Teams Meeting”.
If you are using Windows or Mac devices, you will be taken to a page where you can choose to either join on the web or download the desktop app and then join. And if you are using a mobile device you will be taken to a page where you can download the mobile app and then join.
You can download the Teams App from here
Windows and Mac: https://teams.microsoft.com/downloads
You do not need to have an account. Simply click the link in the invite after downloading the app then add your name and click join as a guest.
2- Join by Phone
Even if you don’t have internet access or the Teams app, you can join some meetings by phone. Just dial one of the below numbers and, once prompted, enter the Conference ID in the invitation email following by “#” sign.
- Saudi Arabia: +966 11 510 2699
- United States: +1 628 203 5250
- Bahrain: +973 1619 7339
- United Kingdom: +44 20 3321 5259
For numbers in other countries, click this link Local numbers and find one that works for you.