Thanks for the link and all the other information as well. Interesting info about Skype. I did not know it was sold twice. First to Ebay and then to Microsoft. A lot of money involved. Also interesting info about Zeenström and Friis. I followed their links as well.
It look like we have to try Teams then after 5:th of May. Problem is the video quality and also the sound that is excellent in Skype. I have tried several other Voip apps and so far none of them had the same quality. Maybe Teams is better now than a couple of years ago when I used it in my work when we had quick, informal video meetings.