The text you're referring to, " Telecom 101 " by , is a highly-regarded resource widely used by professionals in the industry. Its most "interesting feature" is that it isn't just a book—it is the direct distillation of a premium $1,895 instructor-led training course (Teracom’s Course 101) into a single volume. Key Features of Telecom 101

Who Should Read It

3. The LEC vs. IXC Framework

Key Concepts and Technologies

The "101" series is meant to be taken sequentially. Telecom 101 is the prerequisite for all others.