Skype Office, Stockholm, Sweden

One of the initial names for the project was "Sky peer-to-peer", which was then abbreviated to "Skyper". However, some of the domain names associated with "Skyper" were already taken. Dropping the final "r" left the current title "Skype", for which domain names were available.
• Purchase by eBay
In September 2005, SkypeOut was banned in China. In October of the same year, eBay purchased Skype for $2.6 billion. (In 2011, the Ars Technica estimated the purchase price at $3.1 billion, not $2.6 billion.) In December 2005, videotelephony was introduced.
In April 2006, the number of registered users reached 100 million. In October, Skype 2.0 for Mac was released, the first full release of Skype with video for Macintosh, and in December, Skype announced a new pricing structure, with connection fees for all SkypeOut calls. Skype 3.0 for Windows was released.