Some topics from course contents
			n Introduction n Public Switched Telephone Network (PSTN) n Exchange techniques n Transmission n Integrate Services Digital Network (ISDN) n Functions n Interfaces n Automatic Transfer Mode (ATM) and Broadband-ISDN n X.25, Frame relay n Public land mobile networks n GSM n WCDMA n Signaling networks: SS7 n The Internet: Network topology, TCP/IP Suite, Services