Unified-communications-as-a-service (UCaaS) tools enable employee communication, simplify and modernize collaboration systems, and accelerate work through integrations. But to realize these benefits, you’ll first have to select from a diverse set of vendors that vary by size, type of offering, geography, and use case differentiation. Tech leaders should use this report to understand the value they can expect from a UCaaS vendor, learn how vendors differ, and investigate options by size and market focus.