2. Introduction to Communications Instructions: Your Speakers Should be connected to your PC. Make Sure that the Speaker Power is on. Adjust the Volume to an optimum level.

3. How old is Communications…. By Foot Pigeons Smoke Signals Water Channels Horses Rail Postal System Telephone Data Communications

4. Datacom Basics Broadband Communications Telecommunications transmission of voice Data Communications movement of computer information by means of electrical or optical transmission systems convergence

5. Technologies for Data Communications Variety of different technologies for Data Communications (for both business & residential users) Modem/ISDN (Narrowband) ======================= Broadband…. DSL (over telephone lines) Fiber Optics (over dedicated lines) Cable Modem (over cable TV) Wireless Broadband Satellite

6. PTCL Training & Development5 Signaling Module Trunk Module User Access Module Service Server SoftSwitch Trunk Gateway Trunk Gateway Trunk Gateway SS7 Signaling Gateway Contrast between PSTN and NGN User Access Gateway CPU Switching Array Intelligent Service Server IP Core