Try reviewing these if these are of any help:
http://www.cisco.com/c/dam/en/us/td/docs/telepresence/infrastructure/vcs/release_note/Cisco-VCS-Release-Note-X8-2-1.pdf
![](data:image/png;base64,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)
http://www.cisco.com/en/US/docs/telepresence/infrastructure/vcs/config_guide/X8-1/Cisco-VCS-Microsoft-Lync-Deployment-Guide-X8-1.pdf
Also check this post and search content sharing:
http://blog.networkfoo.org/2014/10/integrate-cucm-and-expressway-c-to.html
-Terry
Please rate all helpful posts