After purchase, Microsoft changed the architecture from peer-to-peer to client-server, which incurs extra latency obviously. https://blogs.skype.com/2013/10/0

After purchase, Microsoft changed the architecture from peer-to-peer to client-server, which incurs extra latency obviously. https://blogs.skype.com/2013/10/04/skype-architecture-update/ https://blogs.skype.com/2013/10/04/skype-architecture-update... http://arstechnica.com/business/2012/05/skype-replaces-p2p-supernodes-with-linux-boxes-hosted-by-microsoft/ http://arstechnica.com/business/2012/05/skype-replaces-p2p-s...