AT&T, Inc. announced the launch of its new cloud based Unified Communications Services. This new service will be available to businesses of all sizes as a simple, reliable, carrier-grade service. It is expected to help organisations control costs and eliminate unpredictable expenditures. AT&T UC Services is comprised of two major components, the AT&T Unified Communications Central (UC Central) and AT&T Unified Communications Voice (UC Voice). AT&T UC Central integrates multiple communications and collaboration tools such as IM/chat, email, VoIP calling, web/audio and video conferencing, voicemail, unified messaging and mobility with presence, behind a single user interface designed for both PC and mobile usage.