My company is in the process of upgrading from Office Communicator Server (2005) to what is now known as Lync Server 2010.
As far as I know the process is not straight forward. I've been told that I need to first upgrade from 2005 to 2007, and then to 2010.
Is this true? Also, is there a way to migrate settings/contact information from the 2005 version to 2010?