Lync mobile clients enable you to stay connected, communicate and conference on
Mobile clients for Microsoft Lync 2010 take the power of unified communications
mobile—including rich presence, instant messaging, audio conferencing, and
calling features from a single, easy-to-use interface.
For more information, visit Lync mobile site at http://lync.microsoft.com/en-us/Product/UserInterfaces/Pages/lync-2010-mobile.aspx
You can download the Lync 2010 Windows Phone client on your phone directly from http://windowsphone.com/s?appid=9ce93e51-5b35-e011-854c-00237de2db9e