There are multiple desktop clients available that allow you to connect to a remote Video Conferencing unit or connect into a multi-point meeting.
The Sterrewacht has a (large number of) licenses for Zoom. See separate page for details.
Note that Video Conferencing is not Skype calling. Although it is possible to setup a Skype Video Conferencing meeting, it requires a Skype Business contract to enable this functionality and does not connect to the VC units we have available. Skype uses its own proprietary communication protocols that do not match the standard VC protocols.
For the Linux desktop there are a few public domain packages available:
If you love freedom and care about privacy, there are alternatives to zoom, for instance