Microsoft Lync Server 2010 communications software offers instant messaging (IM), presence, conferencing, and telephony solutions that can support enterprise-level collaboration requirements.
The following tables list the topics in the Lync Server 2010 documentation library. This documentation is also available for download. To download a document from the Microsoft Download Center, click the link next to Download now in the column on the right. You can also download a local compiled help file of all technical content, using the link below.