As a teacher at Folkwang University of the Arts, you can generally use Zoom as a video conferencing service. The IT department issues licences for this purpose. Please contact the IT department for your own Zoom account.
By using the "Adobe Connect" option in Moodle in your course, you can conduct a video conference. Within the conference, you can share your screen, provide documents and do much more besides.
For simple video calls (independently of Moodle), PEXIP is suitable for small numbers of participants (up to 23).
If you are interested, please write an email to: robin.schuetgens(at)folkwang-uni.de, to informally request a meeting room.
As Adobe Connect and PEXIP are provided by the German Research Network (DFN) – and at present this is heavily used by all the universities in Germany, DFN may experience bottlenecks.