Skype the acquisition of 65% of Skype for $1.9 billion from eBay, which attributed to the enterprise a market value of $2.92 billion. Microsoft bought Skype in May 2011 for $8.5 billion. Skype division headquarters are in Luxembourg, but most of the development team and 44% of all the division's employees are still situated in Tallinn and Tartu, Estonia. Skype allows users to communicate over the Internet by voice, using a microphone, by video using a webcam, and by instant messaging. Skype-to-Skype calls to other users are free of charge, while calls to landline telephones and mobile phones (over traditional telephone
Skype for Business platforms in December 2011. Lync 2010 was succeeded by Lync and Lync Server 2013, which were released in 2012. On 11 November 2014, Microsoft announced that Lync would be replaced by Skype for Business in 2015, which would combine features of Lync and the consumer Skype software. In April 2015, Microsoft officially launched Skype for Business. On 22 September 2015, Skype for Business 2016 was released alongside Office 2016. On 27 October 2016, the Skype for Business for Mac client was released. On 7 September 2017, users began noticing a message that stated "Skype for Business is now Microsoft Teams".