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The Essential Guide to Telecommunications / Edition 4

The Essential Guide to Telecommunications / Edition 4

by Annabel Z. Dodd

ISBN-10: 0131487256

ISBN-13: 9780131487253

Pub. Date: 07/15/2005

Publisher: Prentice Hall

The completely updated nontechnical telecom guide for business people and other professionals.

  • Advanced cellular networks
  • Optical technologies
  • Globalization
  • Convergence
  • The Internet
  • Cable modems and DSL

In the past two years, the telecommunications industry has undergone major


The completely updated nontechnical telecom guide for business people and other professionals.

  • Advanced cellular networks
  • Optical technologies
  • Globalization
  • Convergence
  • The Internet
  • Cable modems and DSL

In the past two years, the telecommunications industry has undergone major changes. The Essential Guide to Telecommunications, Third Edition, is your complete guide to the new realities of telecommunications. This new edition reflects all of today's most critical issues, trends and technologies. In addition to providing crucial insights into the fast-changing competitive landscape, Annabel Dodd provides important information about the structure of, and key players in, the industry.

The Essential Guide to Telecommunications, Third Edition will give you an easy-to-comprehend, broad understanding of this fast-changing industry. Coverage includes:

  • Optical technologies expanded
  • Advanced cellular networks: 2.5G and 3G standards
  • Speech recognition, call centers and PBXs
  • Comprehensive coverage of key players and the state of telecommunications in Europe, Asia, and Latin America
  • Updated and expanded coverage of the Internet and convergence

What readers of the previous editions had to say:

"With jargon-free definitions, clear schematic drawings and its steady narrative drive,The Essential Guide to Telecommunications is a reassuring testament to the human ability to comprehend and communicate at some fundamental level even the most bewildering technology."
—David Warsh, The Boston Globe

"This book cuts through all the jargon and mysterious acronyms to give easily understood explanations of telecommunications, from the basics to the latest technology. I refer to it on a regular basis and constantly recommend it to others."

—Michael Rieke, Editor of the Dow Jones Bandwidth Intelligence Alert

"It is fair to say that Annabel Dodd has done more to demystify the industry for more people than anyone else in Massachusetts. For those who don't know bandwidth from a band saw or optical networks from an ophthalmologist, Dodd's book offers valuable insights into the products and services that fall under the telecommunications umbrella."

—Katherine Raphaelson, Director, Massachusetts Telecommunications Council

"This book is written for those who have little or no technical background. It's an easy-to-read overview of much of the technology available now and great if you have no patience for technical terminology."

—George Runkle, The Motley Fool, Inc.

Product Details

Prentice Hall
Publication date:
Essential Guide Series
Edition description:
Product dimensions:
6.99(w) x 9.17(h) x 1.24(d)

Table of Contents


I: Fundamentals

1: Basic Concepts
Analog and Digital
Analog Signals
Digital Signals
Bauds, Bits, Bytes and Codes-Getting Down to Basics
Baud Rate vs. Bits per Second-Electrical Signal Rates vs. Amount of Information Sent
Codes-Adding Meaning to Bits
A Byte = A Character
Bandwidth-Measuring Capacity
Narrowband vs. Wideband-Slow and Fast
Compression and Multiplexing
Compression-Manipulating Data for More Capacity
Streaming Media
Multiplexing-Let's Share
Protocols and Architectures
Architectures-A Framework for Multiple Networks to Communicate
LANs, MANs and WANs
LANs-Local Area Networks
LAN and WAN Devices
Home LANs-Sharing Printers and High-Speed Internet Access-A Lack of Technical Support
MANs-Metropolitan Area Networks
WANs-Wide Area Networks
Higher Speed Services for LAN Traffic
New Devices for Carrier and Internet Service Provider Networks

2: Telephone Systems, Peripherals and Cabling
Telephone Systems-PBXs, Centrex and Key Systems
What Is a PBX?
PBX Trunks
Demarcation-The Location Where Telcos Wire Trunks
PBX Telephones
Centrex-Telephone Company Supplied Service
Key Systems
Wireless PBX and Key System Telephones-On-Site Mobility
Direct-Inward Dialing-Bypassing the Operator for Incoming Calls
Convergence and Telephone Systems
Add-on Peripherals for Key Systems, PBXs and Centrex Systems
Call Accounting-Tracking Calls and Usage
ACDs-Specialized Equipment to Handle Large Volumes of Calls
Network-Based ACD Functions
LAN/PBX/ACD Connectivity to Enhance Productivity
Customer Relationship Management (CRM) for Call Centers
Integrated Voice Response Units-Using the Telephone as a Computer Terminal
Computer Telephony Integration (CTI)-Routing Callers More Intelligently
Media: Wireless, Fiber and Unshielded Twisted Pair Copper
Wireless LANs
Electrical Properties of Copper Cabling
Fiber Optic Cabling-High Capacity and High Costs

II: Industry Overview

3: The Bell System and Regulatory Affairs
The Bell System Prior to and after 1984
Divestiture of the Bell System from AT&T in 1984
Regional Bell Operating Companies (RBOCs) after 1996
Transporting Calls Between Carriers
Local Competition Prior to the Telecommunications Act of 1996
Uneven Competition for Local Telephone Service Throughout the U.S.
Competitive Access Providers (CAPs) to Competitive Local Exchange Carriers (CLECs)
The Evolving View of the Feasibility of Local Competition
Factors Leading to Passage of the Telecommunications Act of 1996
Regional Bell Companies' Desire to Expand Their Offerings
Interexchange Carriers', Utility and Cable TV Companies' Desires to Enter New Markets
Demand for High-Speed Telecommunications Services
Technological Capabilities to Provide High-Speed Services at Low Costs
The Viability of Wireless Services for Local Exchange Service
The Desire for a Uniform National Policy on Local Competition
The Telecommunications Act of 1996
Major Features of the Act
Post Telecommunications Act of 1996 Developments
FCC Rulings, Legal Challenges and Progress Toward Deregulation
Permission for RBOCs to Sell In-Region Long Distance
Unbundled Network Elements (UNEs)-Competitors Leasing Parts of RBOCs' Networks
Fines Levied on Incumbents for Failure to Provide Timely Access to Competitors
Reciprocal Payments
Local Access Fees-A Shift in Balance Between Local and Long Distance Costs
Local Number Portability
Creating an Equal Playing Field and Conserving Numbers
Four Types of Telephone Number Portability
Impact of the Telecommunications Act of 1996

4: Network Service Providers and Local Competition
Local Competition
Strategies for Entering the Local Calling Market-Resale, Wireless, Cable TV and Construction of Facilities
Interexchange Carriers-IEXs
Bandwidth Trading: The Commoditization of Bandwidth
Merchants-Managing Risk for Carriers
Exchanges-A Place to Make Trades
Master Trading Agreements-Shortening the Transaction Cycle
Local Service Providers
Competitive Local Exchange Carriers (Integrated Communications Providers)
Resellers and Switchless Resellers
Building Local Exchange Carriers (BLECs)

5: The Public Network
Switched Services-Local and Long Distance Calling
Attributes of Real-Time Switching Services
DTMF: Access to Voice Mail and Computers
Store-and-Forward Switching-Nonsimultaneous Sending and Receiving
Dedicated Services
Overview of Dedicated Services
Network Topologies-The View from the Top
Declining Sales of Private Lines
Virtual Private Networks-Connectivity for Remote Access, Intranets and Extranets
VPNs (Virtual Private Networks) for Electronic Commerce
VPNs for Intranet Service
Virtual Private Networks (VPNs) for Remote Access
Security on Virtual Private Networks
“The Last Mile” or Access Networks
End and Tandem Central Offices
Digital Loop Carrier Systems-Fiber Optics and Copper Cabling in the Last Mile
Carrier Hotels-Interconnecting Carriers and Providing Secure Space for Equipment
Optical Networking
Passive Optical Networks
Optical Add and Drop Multiplexers (OADM)
Optical Cross Connects (OXC)-Optical Switches
Network Intelligence and Signaling
Overview of Signaling
Common Channel Signaling, Efficiency and Redundancy
Signaling System 7-The Glue for Links Between Carriers
SS7 Components
Convergence-Technical Advances Leading to Improvements in IP Networks
Improvements in Routers
Digital Signal Processors (DSPs)
Voice Compression
Higher Capacity Networks-Optical Technologies
Softswitches-Programmable Switches
The Quality of Service Issue for Voice over IP
SS7 in Packet Networks
Examples of Converged Networks
Free Calls or Low Priced Calls over the Internet
323-A Way to Make Telephone Calls over IP
Prepaid Calls over the Internet
Document Sharing and Click to Talk
Document Sharing

III: Advanced Technologies, the Internet and Wireless

6: Specialized Network Services
T-1-24 Voice or Data Paths over One Telephone Circuit
Channel Banks-Connecting T-1 to Analog PBXs and Central Offices
DS-0 and DS-1-64,000 or 56,000 vs. 1,544,000 bps
Media Used for T-1 Signals
European vs. American and Japanese T-1-24 vs. 30 Channels
A Sampling of T-1 Configurations Using T-1 for Combining Voice, Fax, Video and Data
Fractional T-1-When 24 Paths Are Not Required
T-3-The Capacity of 28 T-1 Lines, 672 Channels
An Explanation of Time Division Multiplexing and Its Limitations
ISDN-Integrated Services Digital Network
Basic Rate Interface ISDN-Two Channels at 64,000 Bit per Second
Primary Rate Interface ISDN-24 Channels
Digital Subscriber Line Technology
Competitive local exchange carriers (CLECs) and DSL
Incumbent Telephone Company DSL Offerings
DSLAMs-Digital Subscriber Line Access Multiplexers
Obstacles to Digital Subscriber Line Availability-Cost, Ease of Implementation and Availability
DSL Lite-Lower Cost Service
DSL-A Technical Explanation
Frame Relay-A Shared Wide Area Network Service
Connections to Frame Relay-Frame Relay Access Devices and Access Line Speeds
Frame Relay for Transmitting Voice
Frame Relay Pricing-Ports, Circuits and Committed Information Rate
Potential Congestion on Frame Relay
Interfacing Between Carriers' Frame Relay Networks
Gigabit Ethernet-Ethernet over Fiber in Metropolitan Areas
Gigabit Ethernet Providers-OLECs
Gigabit Ethernet Through Partners
Gigabit Ethernet Availability
The Advantages of Using Ethernet
Speed Options-Bandwidth on Demand
Gigabit Ethernet Features at Lower Prices
A Sample Metropolitan Area Gigabit Ethernet Configuration
ATM-Asynchronous Transfer Mode
Fixed-Sized Cells-Less Processing
Switching in Hardware-Less Address Lookup
Asynchronous Switching-Improving Network Utilization
Bursting-Selling More Than the Total Capacity
Scalability-The Ability to Use ATM for High- and Low-Speed Applications and IP Traffic
Elements of an ATM Network
SONET-Synchronous Optical Network
SONET Rings-For Greater Reliability
Telephone Company SONET Offerings
SONET Connections to Wave Division Multiplexers
Meshed Optical Technology-Lower Costs, More Suitable for Data than SONET

7: Analog, Cable TV and Digital Modems and Set-Top Boxes
Transferring Data from Computers to Telephone Lines
DCE-Connections to Telephone Lines
Modems-Analog Telephone Lines for Transmitting Data from Digital Devices
Fax Modems
56-Kbps Modems to Achieve Higher Speeds
PCMCIA Modems-Smaller Is Better
CSU/DSUs-Connecting Devices to a Digital Line
Cable Modems-Using Cable TV Facilities for Data Communications
Reverse Channels for Two-Way Data Communications
Cable Modems
Cable Modems for Business and for Remote Access
Set-Top Boxes
Interoperable Set-Top Boxes
Digital Cable TV
Appendix: Modem Standards

8: The Internet
The History of the Internet
Bulletin Board Systems (BBSs)
Who Runs the Internet?
Who Owns the Internet?
Peering-A Way to Exchange Data Between Networks
Content Delivery Networks (CDNs) and Caching-Solving the Problem of Bogged-Down Web Sites
Internet Services
The World Wide Web-Linking and Graphics
Hypertext Markup Language (HTML)-Formatting Web Pages
Home Pages
Hosting-Computers Connected to the Internet with Home Pages
Browsers-Moving from Web Site to Web Site
Email-Computers that Send, Store and Receive Messages
Email Attachments-To Aid Collaborative Projects
HTML Email as a Marketing Tool
Instant Messaging-Real-Time Text Chats
Internet Service Providers, Application Service Providers and Portals
Dialup and Dedicated Internet Access
Application Service Providers (ASPs)
Portals-Content as Well as Internet Access
Search Engines
Internet Addresses
Registries-Management of Entire Top-Level Domains
Numeric IP Addresses
The Structure of Internet Addresses and Adding Capacity for More Addresses
New Generic Top-Level Domains (gTLDs)
Country Code Top-Level Domain Names (ccTLDs)
Electronic Commerce and Advertising on the Web
Advertising on the Web-A Source of Revenue
Online Commerce-What Is Profitable and Sells?
Privacy on the World Wide Web
Opt-out vs. Opt-in-Different Approaches to Protecting Privacy
Legal Issues
Post-Napster Music Industry Online Efforts
The Digital Millennium Copyright Act (DMCA)-Royalties for Radio over the Internet
Anti-pornography Laws and Freedom of Speech
Filtering Software-Policing Corporate Browsing and Email
Open Cable-Cable Companies as Both ISPs and Network Service Providers
ISP Service for Cable TV
Open Cable Service-Trialing Connections to Other IPS
Intranets and Extranets
Intranets-Impact of Web Technology on Internal Operations
Extranets-Using Internet Technology with Customers, Partners and Vendors
Security on the World Wide Web- Establishing Trust
Public and Private Keys and Digital Certificates
Firewalls and Tunneling
Making the Internet a Trusted Place to Do Business

9: Wireless Services
Historical Background of Mobile and Cellular Services
Spectrum Allocation
Spectrum for Higher Speed 3G Services
Cellular Telephone Service-Technologies
Advanced Mobile Phone Services (AMPS)
Digital-Advanced Mobile Phone Service-D-AMPS
PCS-Personal Communications Services
GSM Service
Specialized Mobile Frequencies for Voice-Nextel
Cellular Vendors
Verizon Wireless
Cingular Wireless
AT&T Wireless
GSM Providers
Sprint PCS
The Structure of Cellular Networks
The Cellular Market
Efforts to Improve Service-Antenna Improvements
Health Concerns
Safety on the Road
Privacy and Advertising Intrusions on Cellular E911
Called Party Pays-An Impediment to Cellular Usage
Limited Mobility Wireless for Local Telephone Service
Wireless Number Portability-Keeping the Same Number When Changing Carriers
Limitations of Circuit-Switched Cellular for Data Communications
CDPD-Cellular Digital Packet Data, IP Wireless
The Transition from Second to Third Generation Cellular Networks
The Transition to W-CDMA - GPRS-Data Carried as Packets in 2
5G Networks
EDGE-Enhanced Data Rates for GSM Evolution
Upgrades to W-CDMA from GSM-Costly
The Transition to cdma2000-1xRTT (First Generation cdma2000) and HDR (High Data Rate)
A Comparison Between W-CDMA and cdma2000
Handsets for 3G and 2
5G Services
All-Packet Cellular Networks for Voice and Data
Mobile Internet Access, Messaging Services and Bluetooth
Mobile Commerce
Short Messaging Service (SMS)
The Wireless Application Protocol (WAP)
i-mode Service Worldwide
Specialized Mobile Radio-Originally Voice, Later Data
Private Networks over Mobile Radio Frequencies
Specialized Mobile Radio-Packetized Data Networks for Two-Way Email and Field Services
Paging Services
Paging vs. Wireless Telephone Service
Two-Way Paging Using Narrowband PCS
VSAT Service-Small Satellite Dishes
Vendors of LEOs
Time Division Multiple Access, GSM and Code Division Multiple Access Air Interfaces
Code Division Multiple Access
Time Division Multiple Access and GSM

10: Globalization
The Impetus to Deregulate
Steps in Deregulation
Trends in Global Markets
Latin America
Impact of Poverty
The Internet
Cellular Service
The European Union
Cellular Service
The United Kingdom
Africa and the Middle East-Emerging Markets
The Middle East


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