Book excerpt: Get a sound fix on the expanding universe of telecom Explore the vast telecom landscape -- from standards and protocols to premise, access and transport technologies. Far more than an acronym-studded quick fix, Telecom Crash Course is a true tutorial that offers you context, connections, and the wisdom to quickly grasp key technologies, including wireless Internet, optical networking, 3G, IP, protocol layer, PSTN, ATM, spread spectrum, GPRS, and SIP. Author Steven Shepard includes lively stories that deliver important points about the markets that drive the technologies. You get rigorous technical accuracy, with explanations of each technology's economic importance. Here’s your chance to decipher the alphabet soup of telecom acronyms -- not just what they stand for, but what they mean and how they can generate profits.