Microsoft has offered some great news regarding their licensing part. The Standard Lync Client Access Licenses are going to be included in the Core CAL suite of Financial Year 2012. FY 12 starts in August of 2011, however, you can start using the product if you sign an Amendment.
The changes to Core CAL impact all Volume Licenses Programmes. However the early use rights Amendment is not available for any customers transacting through the OPEN & OPEN VALUE Programme. If you are currently licensed for Core CAL through Select or an Enterprise Agreement, you are able to use these new products immediately (Subject to owning or acquiring the server licenses required)
You will be able to implement Lync with basic functionality (IM/Presence, PC 2 PC Audio/Video calling) from this moment on (if you have the Early Use Rights Amendment filled in)!!
Enjoy this great communications platform and start exploring!!
For more info, please read: http://www.softcat.com/news/article/ms-core-cal-gets-a-welcome-upgrade