Best of Skype and best of Lync are coming together. In the first half of 2015, the next version of Lync will become Skype for Business with a new client experience, new server release and updates to the service in Office 365. Skype for Business will again transform the way people communicate by giving organizations reach to hundreds of millions of Skype users outside the walls of their business.
Lync already offers instant messaging and audio calling with Skype users. Skype for Business adds video calling and the Skype user directory making it possible to call any Skype user on any device.
Current Lync Server customers will be able to take advantage of these capabilities simply by updating from Lync Server 2013 to the new Skype for Business Server in their datacenters.
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Find out more about Skype for Business at http://www.skype.com/en/business/