Downloads:
|
 |
 |
Basics of Telephony (Circuit-Switched) Networks [Two Days]
Prerequisites: none
Who should attend:
Any employee who needs to understand the applications, functions, systems, and workings of a Telephony Network.
Description:
This course describes the infrastructure of the Circuit-Switched Telephony Network. It begins with an overview of how the network evolved and how it has to be backwards-compatible with many decisions made last century. Several different methods of voice and data transmissions are described including some of the advances of Wavelength Division Multiplexing (WDM). The Switching, Signaling and Routing sections describe how calls are dialed and switched across today's network and how features of the future will be integrated with these systems. Circuit-switched Virtual Private Networks are explained and their applications, which are still popular today, are examined.
The course ends with a review of the opening case study to apply information learned
Note: This course parallels the Basics of Data (Packet-Switched) Networks course for the beneficial result of easier comparisons between these two differing technologies.
1. Introductions
| a. |
How History affects our Present |
| b. |
Tradeoff lessons |
| c. |
The Curriculum-Wide Model |
| d. |
Pac-Man Model |
| e. |
Global Definitions/Vocabulary |
| f. |
Case-Study Introduced |
2. Transmission
| a. |
Analog and Digital Basics |
| b. |
Circuit Multiplexing Schemes |
| c. |
Telco Distribution "Problems" |
| d. |
SONET/SDH and WDM |
| e. |
Satellite Service |
| f. |
New Services "on the horizon" |
3. Switching
| a. |
Why Switching? |
| b. |
Analog versus Digital Switching |
| c. |
PBXs versus Centrex |
| d. |
Concentration versus Switching |
| e. |
Types of Switches and Services |
|
4. Signaling and Routing
| a. |
In-Band versus Out-of-band |
| b. |
Telephone Numbering Plans |
| c. |
Local and Global Examples |
| d. |
Discriminating and Directing |
| e. |
Engineering issues |
5. Virtual Private Networks (VPNs)
| a. |
Definition and Services |
| b. |
Architectures and Addressing |
| c. |
Build or Buy |
| d. |
Standards or Proprietary |
| e. |
Multi-vendor challenges |
6. Case Application (Battle of Gettysburg - Revisited)
| a. |
Setting the Scene |
| b. |
What services do we need? |
| c. |
What are the alternatives? |
| d. |
What steps do we take |
| e. |
What to watch for |
7. Final Assessments
|
|
|
|
