How to start a group chat on the Skype mobile and desktop apps

You can start a group chat in Skype with up to 600 participants at once, just by tapping or clicking the "New Chat" option.

You can Skype with up to 50 people at once — here's how it works

You can Skype with up to 50 people at once on your Mac or PC in a Skype group video or audio conference.
Gizmodo

Skype Mac Video Group Chat Now a Ripoff at $5 Per Day

The best part of the recent Skype beta was its battle royale video chatting. But the beta label is gone—and now the (free) fun is too. Group chat will now cost $4. ...