Lecture 1: Introduction (.pdf)
Lecture 2: PSTN (.pdf),  supplementary: FDDI
Lecture 3: SS7+IN (.pdf)
Lecture 4: ATM (.pdf)
Lecture 5: GSM +GPRS (.pdf)
Lecture 6: TETRA+DECT(.pdf), 3G (.pdf)
Lecture 7: ADSL, (.pdf)
Lecture 8: Internet 1 (.pdf)
Lecture 9: Internet 2 (.pdf)