The Integrating Microsoft Lync Server 2010 communications software and Cisco Unified Communications Manager white paper provides a step-by-step guide for using Direct SIP to configure Cisco Unified Communications Manager with Lync Server 2010.You can download this white paper from the Download Center.
Download the guide here: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26800
Read more at source: http://blogs.technet.com/b/nexthop/archive/2011/07/17/integrating-lync-server-2010-and-cisco-unified-communications-manager.aspx
Cheers,
Anderson Patricio
http://blogs.msexchange.org/patricio
Twitter: @apatricio