Exchange Calendar with latest FreePBX

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Was searching to see what if any features of exchange can be used with the Polycom VVX series phones and I ran across this post:

Polycom Phones UC Provisioning Module

I will update the tarball to clarify the license terms. As far as it being based around the Digium phones module I meant the layout and ease of use not the actual code. I like how they displayed the phones in a table format and when editing a phone the options were in dropdowns. The OSS endpoint manager requires editing of XML files for advanced configuration. The Polycom phone module determines which FreePBX modules are enabled, their feature codes, and builds the configuration around that. Fo…

The post is old and references an older version so I am wondering if anyone currently has some level of exchange integration working and how?