Once you have created your room you now need to invite attendees as per the below steps:
Click on the room you’ve just created and hit the invite button.
Depending on the app you are using, you have a few options on how to invite users to your room.
You will see that you have a unique room code that users can enter to join the room, you can either provide this code to the users or hit the invite button which will allow you to send them an invite via email, messaging services or social media.
You can copy the link to send externally or you can enter an email address into the invite function and this will generate and send an email to that user.
Remember to let invited users know they will need to wear headphones before entering a room, click here for more info "get your headphones ready"