Microsoft Lync Server integration as a portlet

Question

I came up with an idea to integrate Lync Server as a Java portlet to Liferay environment. What I would like to have is people names, photos, presence information and contact points on a portlet which communicates the data from Lync server.

(With contact point I mean those direct Voip or IM communications integrations that I suppose belong to the Lync concept.)

I don't know if there exist any ready integrations and if not, what material could be found about APIs and stuff like that so that I could probably code one of my own.

Thanks for interest and tips already beforehand!