Once the domain of select, government-sanctioned companies, communications has become the arena for a growing number of specialized private companies. This book shows how to integrate the capabilities of various providers and compare them to common carrier services. Emphasis is on digital communication approaches, particularly integrating voice, data, and video signals into a common facility, although the complementary roles of fiber optics and satellite communication are elaborated throughout the book. The book is tutorial in nature and aimed at business professionals without technical backgrounds, although those with a solid background in digital communications will find it to be a well-organized review of applicable technologies for the commercial environment.