'Unified Communications' (UC) refers to the systems that allow companies to access the tools they need for communication through a single app/service. That means companies can use instant messaging, email, faxing, VoIP (Internet phone) and video collaboration from the same UI (User Interface). UC can also include call monitoring, recording, and quality services. Unified Communication and Collaboration, or UC&C adds collaboration services to the UC mix, such as file sharing tools, screen sharing, scheduling, and calendars.