How to join the classroom
When purchased a course product, enter the E-mail address for joining the course and receive notice at ''comments'' in payment Method
After we confirm the order, you will receive an email notice, use the link in the email to join classroom
App Store: https://apps.apple.com/app/3cx-webmeeting/id1039756959
Google Play : https://play.google.com/store/apps/details?id=org.tcx.webmeeting