In the name of Alexander Graham Bell, what happened to the phone company? This book utilizes the transformation of "AT&T - Cingular - at&t", as a case to delineate the function and influence of the telecommunication industry in today's changing business environment. This book describes the impact of merger, acquisition, branding and re-branding on corporate management in line with Triple-Bottom-Line (TBL) and Corporate Social Responsibilities (CSR) management theories. One question considered by the text concerns merger: "Is it a strategy?" This book, as a guide book, can be used for business executives who are interested in model construction for business management in Strategy, Decision- Making, Marketing, Customer Management and Supply Chain Management. This book, as a case study, can be used as supplemental material for both business major undergraduates and MBA students in courses such as Strategy, Decision-Making, Marketing, Customer Management and Supply Chain Management.