They use Apolearn for their FLE courses.

Organize virtual classrooms at a glance

Your video lessons with Apolearn
Apolearn allows you to organize and join video training sessions for a live exchange with your learners.
Apolearn integrates the main virtual classroom tools: Jitsi, Zoom, BigBlueButton, Google Meet, Microsoft Teams to allow your trainers to schedule synchronous exchange sessions and your learners to connect in a few clicks.