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Reinventing Telephony: The Voice Over IP Revolution

For the first time in a century, a structural revolution is redefining voice telephone technology. Reinventing Telephony: The Voice Over IP Revolution provides a concise, penetrating view of the technologies and policy issues that are driving this sea change, and emphasizing the core technologies that will make it practical.

Who Should Attend
This short course is designed to appeal to a wide range of people interested in the revolution that is overtaking the traditional telephone industry. It provides a non-threatening view of the numerous technologies and components that are emerging as core features of this important new way of communicating.

Technical personnel, marketing staff and business decision-makers would all benefit from this clear, concept-level presentation of the issues that are driving this revolution.

Course Content
The first three sections develop vocabulary and familiarity with current telephony technologies and practices, and the existing models for wide area data networking.

The next key topic is the Internet phenomenon; its protocols, extensions and limitations as they apply to supporting voice service. Included here is a concept-level treatment of packet delay and Quality of Service issues -- the principal obstacles to adopting Voice Over IP.

A last two topics are:
the technical concepts of signaling; the conventional public telephone network approach and emerging approaches using IP
essential business issues; revenue models and competitive pressures that are influencing the market

Program Outline: Reinventing Telephony: The Voice Over IP Revolution

(i) Telephony As It Has Always Been Defined
The Analog Bandwidth Concept
Analog and Digital Components
Traditional Media; UTP, Fiber Optics, Microwave ...
The Multiplexed, Channelized Infrastructure
The Current Convergence Model: IP/ATM/SONET/WDM

(ii) Digitizing Voice
Pulse Code Modulation
The ISDN Model For Voice
DSP-based Vocoding Techniques
Compelling Advantages of Vocoding vs. PCM

(iii) Switching; Circuit and Packet Approaches

The Circuit Switched Infrastructure
The Public Switched Telephone Network: The 10,000 ft. View
Concept Features of Packet Switching
Connection-Oriented vs. Connectionless Packet Communication

(iv) Primer: The Internet Computing Architecture
Elements of the ICA
Next Generation Features and Opportunities
Real-Time Extensions Applied to Voice Over IP
Quality of Service Issues

(v) Voice and Packet Switching
Compelling Advantages of Packet vs. Circuit Switching
Common Features; Voice Over Packet
Packet Delay, Packet Size and Network Delay Factors
Mobile IP; A Role For Voice?

(vi) Signaling; Why We need It and What It Does
Signaling in the PSTN; What Makes The Phone Ring
Centralized vs. Distributed Approaches
In-Band, Out-Of-Band and Common Channel Signaling
Making the The IP Phone Connection

(vii) Call Control Protocols and Configurations

Comparison of Call Control Protocols
H.323, SIP, MGCP and Megaco
Service Provider Configurations
Roles of Gateways, Softswitches and Servers

(viii) Business Issues
Traditional Telephony Revenue Models
Emerging Revenue Models
End-User Advantages
Service Provider Advantages
The Effect of Competition on Network Evolution

Glossary of Terminology
Suggestions For Further Reading

General Index


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