Office Communicator 2007 is a unified communications client that helps people be more productive by enabling them to communicate easily with others in different locations or time zones using a range of different communication options, including instant messaging (IM), voice, and video. Integration with programs across the 2007 Microsoft Office system — including Word, Excel, PowerPoint, OneNote, Groove, and SharePoint Server — gives information workers many different ways to communicate with each other via a consistent and simple user experience.
Office Communicator 2007 provides easy access to rich presence, IM, and other real-time communications capabilities to enable information workers to communicate with each other more easily and quickly.
Integration with existing address books and corporate directories means that it's not necessary to maintain separate and disconnected contact lists just for real-time communications. You can find anyone in your contact lists, see information about their availability, and communicate with them right away.
Rich presence capabilities enable you to share information about your availability with other contacts, and to view their availability. Office Communicator 2007 integrates presence information from multiple sources — including your calendar and out of office message — to provide better information so people know if you're available to communicate, and if so, which method would be best.