Unified communications as a service (UCaaS) capabilities now exceed those available from premises-based UC. Enterprise planners should look for expanded global capacity, better customer service and project management, an expanded set of application programming interfaces (APIs), and the ability to deploy a richer set of UC functionality, led by mobility and video. Read this Gartner analyst report to discover why you should consider the cloud to expand or replace aging, inadequate business phone systems, meeting services, and contact center equipment.