Resumen:
Chapter 1. Background and terminology -- Chapter 2. Why digital? -- Chapter 3. Voice digitization -- Chapter 4. Digital transmission and multiplexing -- Chapter 5. Digital switching -- Chapter 6. Digital modulation and radio system -- Chapter 7. Network synchronization, control, and management -- Chapter 8. Fiber optic transmission systems -- Chapter 9. Digital Mobile Telephony -- Chapter 10. Data and Asynchronous Transfer Mode Networks -- Chapter 11. Dlgital Subscriber Access -- Chapter 12. Traffic Analysis