Introduction. Telephone circuits. Round trip attenuation and delay time effects. Echo canceling.
Signaling systems. Private Automatic Branch Exchanges (PABX). Transmission planning.
PCM, A-law, Mu-law companding. PCM hierarchy. TDM transmission systems and their hierarchy.
Traffic Theory: Erlang B and C formulas, traffic and resources calculations. Digital exchanges.
Switching techniques. Network synchronization, control and hierarchy. Synchronization.
System controllers and CPU. Common channel control and distributed control.
Data Networks and ISDN and packet switching. Open systems interconnection and ISDN networks.
Data and control interface to other systems. Signaling systems.