Open the "Calendar" cube.
Click on the day of the appointment.
Click the video consultation activity in the day view.
A link is provided in the description. Click on this link to start the video consultation.
The call will now start. If you work from a PC it will still ask you to click 'Launch Application'.
If you do not have "Zoom" installed yet, you need to download it first. You can do this by following the link that is shown on your Video Consultation screen.