Unified Communication aims to integrate different communication methods onto shared platforms, providing mobility for users. It involves integrating voice, email, fax, instant messaging and legacy phone systems. Implementation should start with basic features and focus on integration points. Key parts include setting up VOIP softphones and servers, presence systems to see availability, and integrating with existing phone systems and services like fax. Success requires understanding your needs and choosing solutions that work with your existing infrastructure while keeping interoperability and standards in mind.