I have not found a text that provides a more comprehensive treatment of the topics contained in this text, ranging from ISDN and Broadband ISDN to frame relay and ATM. -Thomas Gannon, Adjunct Professor, Electric and Computer Engineering Worcester Polytechnic Institute Best-selling author William Stallings provides an in-depth presentation of the technology and architecture of integrated services digital networks (ISDN). This book covers the integrated digital network (IDN), ISDN services, architecture, signaling system no. 7 (SS7) and includes a comprehensive treatment of the ITU-T protocol standards. Detailed coverage of protocols and congestion control strategies for both frame relay and ATM are also provided. New to this edition: * Coverage of the new digital susbscriber line technologies, including ADSL. * Expanded coverage of ATM services and traffic control, including the ABR. * Updated coverage of ATM Forum specifications. * Web page for the book to provide further information and links to related sites.