
Skype for Business Server 2015 and Skype for Business Online support the full Lync feature set for real presence, IM, audio and video conferencing and calling as well as the seamless integration of these functions within Office desktop and Microsoft 365 applications including PowerPoint, Word, Excel and Outlook.


Skype for Business Server, formerly called Lync Server and Office Communications Server, is a self-hosted solution that brings the familiar Skype user interface (UI) to an enhanced version of Lync Server to provide a state-of-the-art platform for unified communications and collaboration.
