Microsoft Office Communicator Mobile for Java is a new enterprise messaging client built on the Java Platform Micro Edition. When deployed together with Office Communications Server 2007 R2, Communicator Mobile for Java enables several mobile phones that are otherwise not supported by native clients but have the capability to run Java applications to function as unified communications endpoints, providing instant messaging (IM), presence, and telephony to create a familiar experience for users of Microsoft Office Communicator.

Like Office Communicator users, Communicator Mobile for Java users can: