Microsoft Office Live Communications Server
 |
|
| Developer(s) | Microsoft |
|---|---|
| Stable release |
2013 (15.0.4420.1017) / 2 October 2012
|
| Preview release |
2015 / 30 April 2015
|
| Operating system | Microsoft Windows |
| Platform | x86-64 |
| Type | Instant messaging, collaborative software |
| Website | products |
Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third-party gateway or trunk. These features are available within an organization, between organizations and with external users on the public internet or standard phones (on the PSTN as well as SIP trunking).
One basic use of Lync Server is instant messaging (IM) and presence within a single organization. This includes support for rich presence information, file transfer and voice and video communication. Lync uses Interactive Connectivity Establishment for NAT traversal and TLS encryption to enable secure voice and video both inside and outside the corporate network.
Lync Server also supports remote users, both corporate users on the Internet (e.g. mobile or home workers) as well as users in partner companies. Lync supports identity federation, enabling interoperability with other corporate IM networks. Federation can be configured either manually (where each partner manually configures the relevant edge servers in the other organization) or automatically (using the appropriate SRV records in the DNS).
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