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CCNA Voice Exam Cram
IIUC Exam 640-460
David Bateman
William Burton, CCIE No. 1119
In this book you’ll learn how to
WRITTEN BY LEADING EXPERTs:
David Bateman is a certified Cisco instructor with more than 20 years of internetworking experience. David is currently the director of curriculum development for Skyline-ATS.
William Burton, CCIE No. 1119, CCVP, CCNP, CCVA, CCNA, is an author, instructor, and IT implementer with more than 35 years of experience. Mr. Burton’s experience includes small to global network architecture and deployments for federal agencies, state and local governments, corporations, and educational institutions.
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ISBN-13: 978-0-7897-3799-1
ISBN-10: 0-7897-3799-X
Introduction
Self Assessment
Part I: Traditional Telephony
CHAPTER 1:Traditional Telephony Overview
Understanding the Legacy PSTN
Business Phone Systems
Call Signaling
Supervisory Signaling
Addressing
Informational
PSTN Call Setup
Numbering Plans
E.164 Addressing
Exam Prep Questions
Answers to Exam Prep Questions
CHAPTER 2:Introducing Analog Circuits
Analog Telephone Components
Foreign Exchange Trunks
Foreign Exchange Station
Foreign Exchange Office
Understanding Circuit Types
Loop Start
Ground Start
E&M
Exam Prep Questions
Answers to Exam Prep Questions
Suggested Reading and Resources
CHAPTER 3: Introducing Digital Circuits
From Analog to Digital: Coder/Decoder (Codec) Revealed
Sampling
Quantization
Encoding Quantized Values to Binary
Compression
Introducing TDM
Understanding Circuit Types
T1 Circuits
E1 Circuits
Understanding Signaling Types
Channel-Associated Signaling (CAS)
CCS
Summary
Exam Prep Questions
Answers to Exam Prep Questions
Suggested Reading and Resources
Part II: VoIP
CHAPTER 4: Voice to VoIP
Introducing Digital Signal Processors
Understanding Transport Protocols
Real-Time Transport Protocol
Real-Time Transport Control Protocol
Packetizing Voice Streams
G.711 Codec
G.729 Codec
Understanding Codecs
Comparing G.729 and G.729a Codecs
Understanding the Effect of VAD
Additional DSP Functions
Echo Cancellation
Conferencing
Transcoding and Media Termination Point
Exam Prep Questions
Answers to Exam Prep Questions
Suggested Reading and Resources
CHAPTER 5: Functions of VoIP Signaling Protocols
SCCP
H.323
MGCP
SIP
