Microsoft Office Communicator Mobile is a unified communications client for Microsoft Office Live Communications Server 2005. Communicator Mobile runs on Microsoft Windows Mobile software based devices. It extends the reach of Live Communications Server 2005 to information workers who use Windows Mobile based devices. Communicator Mobile offers a similar look and feel to the desktop version of Microsoft Office Communicator 2005, and it ensures that access to capabilities that are provided by Live Communications Server 2005 continues when users are away from their desks.