Most beginners fail because they focus on one technology (e.g., Wi-Fi) without understanding the transport network. Coll starts with the "Big Picture"—explaining the difference between Customer Premises Equipment (CPE), the Access Network, and the Core Network. The PDF uses simple diagrams to show how a cell phone tower connects to a fiber backbone.
If you’d like, I can:
Eric Coll's Telecom 101 (2022) is a comprehensive,plain-English guide to telecommunications, widely used as a training text for non-engineers and as the official study guide for the TCO Certification . The sixth edition offers a structured, building-block approach covering fundamentals, IP networking, and 5G, though some readers have noted formatting issues with digital versions . View the sixth edition on Amazon . Telecom 101 : Eric Coll - Amazon UK telecom 101 eric coll pdf