Unified communication is to enable people to collaborate, no matter where they are or what network, carrier, protocol, application, or device they use. Achieving this does not lie within the power of any one vendor, equipment manufacturer, service provider, or standards body to solve. It takes an ecosystem — a concerted industry effort driven by the needs of end users. In today's mixed UC environments, the only practical way to truly unify communications is to orchestrate the broadest possible use of open standards and native interoperability to work toward all the disparate parts interacting seamlessly.