UCMA is required:
When the presence service is used with Lync 2010 / 2013 the requirements has changed. Please see the matrix below for specific requirements.
|Microsoft Windows Server 2008 with Service Pack 2||Windows Server 2008 R2 Service Pack 1|
|Windows Server 2008 R2||Windows 2012 Server|
The requirements will affect those of you who will run the Presence Service 3.0.