In recent years, regulators and businesses have struggled to keep pace with an onslaught of new technologies that has dramatically changed the world's telecommunications networks. This book gathers together research intended for those who must grapple with these changes -- the people who must decide whether and how to deploy new telecommunications technologies, and those who must regulate the technologies. The research is divided into three sections focusing on the past, present and future of telecommunications innovations. The first section, Lessons from the Past, examines what lessons...