In today's wired world, practically everyone needs to understand telecommunications. With The Essential Guide to Telecommunications, Second Edition you can -- even if you have no technical background at all. Leading consultant Annabel Z. Dodd covers all the fundamental concepts you need to know to understand the industry -- and make smarter buying decisions. This new Second Edition has been updated with up to the minute coverage of today's most critical issues, including the technologies and leading-edge applications associated with digital convergence. Dodd covers the powerful new roles played by IP networking in telephony, streaming media, call centers, PBXs, and beyond. She introduces cable modems, xDSL, and other high-speed Internet access alternatives; reviews frame relay, ATM, and ISDN; and offers up-to-the-minute insight into the telecom industry's new competitive landscape. Along the way, you'll master all the basics of telecommunications, including: the differences between analog and digital signals; what bandwidth is; why protocols and architectures matter; what multiplexing and compression are; the role of the public network; the evolution of the Internet; and much more.