As of August 3, 2012 all OCS standard users have been migrated to Lync. If you or your users have been notified of your migration being complete but not yet updated your client please do so at your earliest convenience.
The download for the Lync client is available here: http://its.vanderbilt.edu/uc/lync#ClientDownload.
There are approximately 150 UC level users remaining in Lync. Migrations for these users is being coordinated and will be complete in the near future. Once all users have been migrated to Lync the OCS environment will be shut down. For additional information see the Lync website available here: http://its.vanderbilt.edu/uc/lync.
Please send any questions or comments to LyncMigration@Vanderbilt.edu.