When scheduling a meeting in Outlook it’s easy to add a link for Teams. At the top of the meeting invitation, press the “Join Teams Meeting” button. This will create a link in the meeting invite for everyone to join.  

 

 

Within the meeting invite you can enter any internal employee or external email address to join your meeting. The invite and link will be sent out, and they can join your meeting without needing a Teams license. External participants can use a web browser like Chrome without installing any software.