
The Essential Guide to Telecommunications
Résumé
- Advanced cellular networks
- Optical technologies
- Globalization
- Convergence
- The Internet
- Cable modems and DSL
- 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
- Preface
- Acknowledgments
- I: Fundamentals
-
- 1: Basic Concepts
- Analog and Digital
- Analog Signals
- Digital Signals
- Bauds, Bits, Bytes and Codes-Getting Down to Basics
- Overview
- 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
- Appendix
- 4: Network Service Providers and Local Competition
- Local Competition
- Strategies for Entering the Local Calling Market-Resale, Wireless, Cable TV and Construction of Facilities
- Carriers
- 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
- AT&T
- Competitive Local Exchange Carriers (Integrated Communications Providers)
- Resellers and Switchless Resellers
- Building Local Exchange Carriers (BLECs)
- Agents
- Summary
- 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
- Background
- 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
- H
- 323-A Way to Make Telephone Calls over IP
- Prepaid Calls over the Internet
- Document Sharing and Click to Talk
- Document Sharing
- Summary
- 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
- NT1S-CONNECTING DEVICES TO AN ISDN LINE
- 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
- Registrars
- 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
- Conclusion
- 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
- 4G-Futures
- Mobile Internet Access, Messaging Services and Bluetooth
- Mobile Commerce
- Short Messaging Service (SMS)
- Bluetooth
- 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
- Satellites
- 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
- Challenges
- Trends in Global Markets
- Latin America
- Brazil
- Mexico
- Argentina
- Impact of Poverty
- Asia
- China
- Japan
- The Internet
- Cellular Service
- Europe
- The European Union
- Cellular Service
- Germany
- The United Kingdom
- France
- Africa and the Middle East-Emerging Markets
- Africa
- The Middle East
- Conclusion
- Glossary
- Bibliography
- Index
L'auteur - Annabel Z. Dodd
is a faculty member at Northeastern University's
State-of-the-Art Program, where she teaches
telecommunications for the non-technical. Formerly a
marketing manager at Bell Atlantic and telecommunications
manager at a Fortune 500 company, she is a top
telecom consultant and a popular speaker on
telecommunications issues.
Caractéristiques techniques
PAPIER | |
Éditeur(s) | Prentice Hall |
Auteur(s) | Annabel Z. Dodd |
Parution | 16/11/2001 |
Édition | 3eme édition |
Nb. de pages | 500 |
Format | 17,7 x 23,5 |
Couverture | Broché |
Poids | 1000g |
Intérieur | Noir et Blanc |
EAN13 | 9780130649072 |
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