Lync 2010RC : Some lessons learned testing upgrade from OCS2007 R2 to Lync 2010RC

I have begun testing with Lync 2010 RC.  In my environment, I have OCS 2007 R2 and  Exchange 2010 with UM deployed.  I added Lync 2010 to the environment.  I can blog about that process if people are interested.  Today, I learned some things about the process of moving people from OCS 2007 R2 to Lync and also some interop…

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