"There should really be a place for a free-software video calling application that (1) actually works, and (2) can be verified to lack backdoors for government agencies and anybody else interested in listening in on conversations. But that application does not seem to exist at this time, alas."
Interestingly enough, just last week I found linphone to be exactly that. It's free and works perfectly with even better video quality than skype. It's also available for many platforms like Linux, Windows and Android. For my use case, which is better integrating a remote team member into the team meetings, the possibility to have a direct connection via the VPN is a very nice bonus.
Maybe a grumpy editor's guide to video chat applications is in order?