All unified communications (UC) solutions are intended principally to improve user productivity and enhance business processes that relate to communications and collaboration. Gartner defines UC solutions — equipment, software and services — as offerings that facilitate the use of multiple enterprise communications methods to achieve those aims. UC solutions integrate communications channels (media), networks and systems, as well as IT business applications, and, in some cases, consumer applications and devices. UC offers the ability to significantly improve how individuals, groups and companies interact and perform. The UC solutions that enterprises deploy range from stand-alone suites from single vendors, to integrated applications and platforms from multiple vendors. UC is often deployed to extend and add functionality to established communications investments.