Unified communications (UC) uses an integrated platform to support voice, video, data and other communication functions through a single system accessible from various devices. It aims to improve work efficiency by enabling seamless collaboration and information sharing. A study found knowledge workers spend nearly half their time on non-core tasks that could be eliminated through UC. It allows transferring calls, screen sharing, messaging and accessing applications regardless of location. UC provides phone system functionality as well as collaboration tools to improve productivity. Companies implementing UC have seen cost savings from reduced downtime and more efficient use of IT resources.