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END BACK NEXT The Networke d Enterprise Trends in Telecommunic a-tions The Internet Revolution Business Use of the Inte rnet Section II Telecommunic a-tions Alternative s Telecommunic a-tions Model Network Topo logies Bandwidth Al ternatives KEY TERMS Copyright 2005, McGraw-Hill/Irwin, Inc. 6-1 Real World Cas es Telecommunicat Telecommunicat ions and ions and Networks Networks

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-1

Real World Cases

Telecommunications Telecommunications and Networksand Networks

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-2

Real World Cases

Learning ObjectivesLearning Objectives1. Identify several major developments

and trends in the industries, technologies, and applications of telecommunications and Internet technologies.

2. Provide examples of the business value of Internet, intranet, and extranet applications.

3. Identify the basic components, functions, and types of telecommunications networks used in business.

4. Explain the functions of major types of telecommunications network hardware, software, media, and services.

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-3

Real World Cases

The Networked The Networked EnterpriseEnterprise

• Networking Converges Computing and Communications

• Reduction of Geographic Boundaries

• Networked Enterprises• Real World Case 1- Real World Case 1-

Celanese Chemicals Celanese Chemicals and Othersand Others

Click to go toCase 1

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-4

Real World Cases

Trends in Trends in TelecommunicationsTelecommunications

Industry TrendsIndustry TrendsIndustry TrendsIndustry Trends Toward more competitive vendors, carriers, alliances

and network services, accelerated by deregulation and the growth of the Internet and the World Wide Web

Technology TrendsTechnology Trends Toward extensive use of Internet, digital fiber-optic, and wireless technologies to create high-speed local and global internetworks for voice, data, images, audio, and videocommunications

Application TrendsApplication Trends Toward the pervasive use of the Internet, enterprise intranets, and interorganizational extranets to support electronic business and commerce, enterprise collaboration, and strategic advantage in local and global markets

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-5

Real World Cases

Trends in Trends in TelecommunicationsTelecommunications

Services available today…Services available today…Full Service Spectrum•Broadcast TV•High-definition TV•Enhanced pay-per-view•Video-on-demand•Interactive TV•Interactive video games•Video catalog shopping•Distance learning•Desktop multimedia•Image networking•Transaction services•Internet access•Telecommuting•Videoconferences•Video telephony•Wireless Access•Cellular/PCS systems•POTS-Plain old telephone service

EntertainmentEntertainment

InformationInformationTransactionsTransactions

CommunicationsCommunications

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-6

Real World Cases

Trends in Trends in TelecommunicationsTelecommunications

Technology TrendsTechnology Trends•Internet Networking Technologies•Open Systems•Connectivity•Interoperability•Digital Network Technologies

•Higher Transmission Speeds•Move Larger Amounts of Information

•Greater Economy•Lower Error Rates than Analog

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-7

Real World Cases

Trends in Trends in TelecommunicationsTelecommunications

Business Applications…Business Applications…

•Creation of Business Value•Develop Strategic Capabilities•Overcome Geographic Barriers•Overcome Time Barriers•Overcome Cost Barriers•Overcome Structural Barriers

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-8

Real World Cases

Trends in Trends in TelecommunicationsTelecommunications

The Internet Revolution…The Internet Revolution…

Internet Applications•Surf•E-Mail•Discuss•Chat•Buy and Sell•Download•Compute•Other Uses

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-9

Real World Cases

Business Use of the Business Use of the InternetInternet

GE Power Systems: GE Power Systems: Using the Using the Internet CaseInternet Case

•Creation of a Power Plant Entirely on the Internet

•Holding Virtual Meetings•Blueprints Exchanged and Modified in Real Time on the Web

•Customers Can Watch as Turbine is Built from Anywhere

•20-30% Reduction in Time to Build Turbine

•1-2% Increase in Turbine Output•30% Increase in Sales Revenue

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-10

Real World Cases

Business Use of the Business Use of the InternetInternet

Internet Adds Value to BusinessesInternet Adds Value to Businesses

Headquarters Suppliers

Remote OfficesCustomersBusiness Partners

InventoryManagement

Systems

The Internet

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-11

Real World Cases

Deriving Business ValueDeriving Business Value

ReduceReduceCosts ofCosts of

DoingDoingBusinessBusiness

Develop NewDevelop NewWeb-BasedWeb-Based

ProductsProducts

IncreaseIncreaseCustomerCustomer

Loyalty andLoyalty andRetentionRetention

AttractAttractNewNew

CustomersCustomers

DevelopDevelopNew MarketsNew Marketsand Channelsand Channels

GenerateGenerateNewNew

RevenueRevenueSourcesSources

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-12

Real World Cases

The Role of IntranetsThe Role of Intranets•Intranets Redefined

•Use of Web Browsers

•TCP/IP Network Protocols

•HTML Hypermedia

•Internet-Like Environment

•Extranet LinksHow Companies Derive Business Value…How Companies Derive Business Value…

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-13

Real World Cases

The Role of IntranetsThe Role of Intranets

ExistingE-Mail, Voice-Mail Systems

ExistingDatabases

andEnterprise

Applications

HTML, MS Office,XML, Java, and

Other DocumentTypes

ExistingHardware

andNetworks

Communication andCollaboration

Business Operationsand Management

Web Publishing

Intranet Portal Management

FIREWALL

IntranetEnterpriseInformation

Portal

Employees

Everyone

Customers,Suppliers,

and Partners

Author, publish, andshare hypermedia

documents

Centrally administerclients, servers,

security, directory,and traffic

Secure, universalaccess to view

and use corporateand external data

Communicate andcollaborate with e-mail,

discussion forums,chat, and conferencing Intranet

Extranet

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-14

Real World Cases

The Role of IntranetsThe Role of Intranets

• Designer of Electronic Design Automation (EDA) Software Tools

• 3,000 Employees Worldwide• Developed Intranet Called

OnTrack for 500 Managers• Created a Single Enterprise

Information Portal• Provided Immediate Instant

Information

Cadence OnTrack: Cadence OnTrack: Business Business Value of an IntranetValue of an Intranet

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-15

Real World Cases

The Role of ExtranetsThe Role of Extranets•Business Value of Extranets•Gaining Competitive Advantage

•Virtual Private Networks•Firewalls and Security Issues•Interactive Web-Enabled Services to Business Partners

Graphically…Graphically…

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-16

Real World Cases

Partners,Consultants,Contractors

Consumers

Business Consumers

Suppliers and Distributors

The InternetworkedEnterprise

The Role of ExtranetsThe Role of ExtranetsConnecting Enterprise to Consumers, Connecting Enterprise to Consumers, Business Customers, Suppliers, and Business Customers, Suppliers, and Other Business PartnersOther Business Partners

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-17

Real World Cases

The Role of ExtranetsThe Role of Extranets

• Platinum Lender Access Extranet Created by Countrywide

• Access to Account and Transaction Information

• Snap-on Created Franchise Information Network for Their Independent Dealers

• Supports Interactive News and Information Exchange

Countrywide and Snap-on: Countrywide and Snap-on: Extranet ExamplesExtranet Examples

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-18

Real World Cases

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

• GPS Use by Trucking and Cement Firms

• “Time-Definite-Delivery”• Omni TRACKS System• Better Management of Time-

Sensitive MaterialsReal World Case 2- Real World Case 2- Con-Way NOW and Trimble Con-Way NOW and Trimble

Navigation: The Business Navigation: The Business Value of GPS NetworksValue of GPS Networks Click to go to

Case 2

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-19

Real World Cases

Key Components and Alternatives

• Networks• Media• Processors• Software• Channels• Topology/Architecture

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-20

Real World Cases

A Telecommunications Network A Telecommunications Network ModelModel

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

PCs, NCs, andOther Terminals

TelecommunicationsProcessors

TelecommunicationsChannels

TelecommunicationsProcessors

TelecommunicationsSoftware

Computers

11

2233

22

44

55

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-21

Real World Cases

Types of Telecommunications NetworksTypes of Telecommunications Networks

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

•Wide Area Networks (WANs)•Local Area Networks (LANs)•Network Server•Network Operation System•Virtual Private Network (VPNs) Graphically…Graphically…

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-22

Real World Cases

Example Wide Area NetworkExample Wide Area Network

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-23

Real World Cases

Example Local Area NetworkExample Local Area Network

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

PC Workstation PC Workstation PC Workstation

PC Workstation PC Workstation PC Workstation

Shared Printer

Shared Databasesand Software Packages

Internetwork Processorto Other Processors

NetworkServer

Shared HardDisk Unit

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-24

Real World Cases

Example Virtual Private NetworkExample Virtual Private Network

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

IntranetServer

Router

Intranet

Company ACompany A

Company BCompany B

Intranet

IntranetServer

ExtranetServer

Router

NetworkFirewall

NetworkFirewall

Extranet

TheTheInternetInternet

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-25

Real World Cases

Link Staffing Case: Challenges of VPN ServicesLink Staffing Case: Challenges of VPN Services

Telecommunications Telecommunications Network AlternativesNetwork Alternatives

• Connecting 49 Branches in 29 States by a VPN

• Outsourced Network to OpenReach

• Previous Problems with Another Provider

• New Provider Quite Successful

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-26

Real World Cases

Client/Server NetworksClient/Server NetworksFunctions of the Computer SystemsFunctions of the Computer Systems

Client Systems Servers

MainframeLarge Servers

• Functions:Functions: Provide user interface, perform some/most processing on an application.

• Functions:Functions: Shared computation, application control, distributed databases.

• Functions:Functions: Central database control, security, directory management, heavy-duty processing.

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-27

Real World Cases

Other NetworkingOther Networking• Client/Server Networks

–Clients–Servers–Downsizing–Legacy Systems

• Network Computing• Peer-to-Peer Networks

(P2P)

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-28

Real World Cases

Other NetworkingOther Networking

A peer-to-peer network architecture with aDirectory of all peers on a central server

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-29

Real World Cases

Other NetworkingOther Networking

A pure peer-to-peer network architecture with no central directory server

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-30

Real World Cases

Telecommunications MediaTelecommunications MediaTwisted-Pair WireCoaxial CableFiber Optics• Photons• Dense Wave Division

Multiplexing (DWDM)Wireless Technologies• Terrestrial Microwave• Communications Satellites

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-31

Real World Cases

Telecommunications MediaTelecommunications Media

• Network Connecting 459 Restaurants and 6 Plants

• Used VSAT Satellite Communications Network

• Faster Credit Card Authorizations

• Automatic Overnight Polling of Financial Data from POS Terminals

• Planning Inventory Management Application

Bob Evans Farms Case: The Case for Satellite Bob Evans Farms Case: The Case for Satellite NetworksNetworks

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-32

Real World Cases

Telecommunications MediaTelecommunications MediaCellular and PCS SystemsWireless LANsThe Wireless Web• Very Thin-Clients• Wireless Application

Protocol (WAP)• Third Generation (3G)

Wireless Technologies• Wireless Markup

Language (WML)

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-33

Real World Cases

Telecommunications MediaTelecommunications Media

WebServer

HTMLor

XML

WMLFilter Proxy

WirelessAccessProtocol

Wireless Application Protocol Wireless Application Protocol (WAP) Architecture for (WAP) Architecture for Wireless Internet ServiceWireless Internet Service

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-34

Real World Cases

Telecommunications MediaTelecommunications Media

• Use of Wireless as Part of UPScan Standardization Effort

• Use of Bluetooth for Cordless Connection to Peripherals

• Developed Legacy Application Programming Interfaces (API)

• Connected to Web for New Customer Tracking Ability

The UPS Case: Wireless LANs The UPS Case: Wireless LANs and M-Commerceand M-Commerce

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-35

Real World Cases

Telecommunications Telecommunications ProcessorsProcessors

• Modems–Modulation–Demodulation

• Multiplexers• Internetwork Processors

–Switches–Routers–Hubs–Gateways

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-36

Real World Cases

Telecommunications Telecommunications ProcessorsProcessors

Corporate Local Area Network Internet Provider

Internet Backbone Internet Provider Private HomeModem

Typical Internet ConnectionTypical Internet ConnectionNetwork Interface Card

NIC

NIC

HubEthernetSwitch Router

FrameRelay

Switch Router

ATMSwitch

CoreRouter ATM

SwitchRouter

FrameRelay

Switch

RemoteAccessDevice

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-37

Real World Cases

Telecommunications Telecommunications ProcessorsProcessors

Comparing Connecting TechnologyComparing Connecting Technology

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-38

Real World Cases

Telecommunications Telecommunications SoftwareSoftware

• Network Operating Systems

• Network Management–Traffic Management–Security–Network Monitoring–Capacity Planning

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-39

Real World Cases

Network Management SoftwareNetwork Management Software

Telecommunications Telecommunications SoftwareSoftware

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-40

Real World Cases

Nielsen Media Research and Others: Nielsen Media Research and Others: Network Bandwidth Management Network Bandwidth Management ChallengesChallenges

Telecommunications Telecommunications SoftwareSoftware

• Sharing Resources Increases Bandwidth Requirements

• Need Clear Idea of Actual Bandwidth Needs

• Gaming, Audio and Video Downloads Are Large Users

• Analysis of Use Adds to Network Efficiency

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-41

Real World Cases

Network TopologiesNetwork Topologies• Topologies or Network

Structures• Star• Ring• Bus• Mesh• Client/Server May Use

Any Combination

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-42

Real World Cases

Network TopologiesNetwork TopologiesGraphical Topology Examples Graphical Topology Examples

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-43

Real World Cases

Network Architecture Network Architecture and Protocolsand Protocols

• International Standards Organization (ISO)

• The Seven-Layer Open Systems Interconnection (OSI) Model

• Five-Layer Transmission Control Protocol/Internet Protocol (TCP/IP)

• OSI and TCP/IP Are Related to One Another…

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-44

Real World Cases

Network Architecture Network Architecture and Protocolsand Protocols

TCP/IPTCP/IPThe OSIThe OSIModelModel

• Provides communications services for end user applications

• Provides appropriate data transmission formats and codes

• Supports the accomplishment of telecommunications sessions

• Supports the organization and transfer of data between nodes in the network

• Provides appropriate routing by establishing connections among network links

• Supports error-free organization and transmission of data in the network

• Provides physical transmission of data on the telecommunications media in the network

PhysicalLayer

Data LinkLayer

ApplicationLayer

NetworkLayer

TransportLayer

PresentationLayer

SessionLayer

Application orProcess Layer

Host-to-Host Transport Layer

Internet Protocol (IP)

Network Interface

Physical Layer

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-45

Real World Cases

Bandwidth AlternativesBandwidth Alternatives• Narrow Band• Medium Band• Broadband• Switching Alternatives

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-46

Real World Cases

Bandwidth AlternativesBandwidth Alternatives• Packet Switching Technology• Cell Switching Technology• Choices Made by Firms

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KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-47

Real World Cases

SummarySummary• Telecommunications Trends

• The Internet Revolution• The Business Value of the Internet

• The Role of Intranets• The Role of Extranets• Telecommunications Networks

• Network Alternatives

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-48

Real World Cases

KEY TERMSKEY TERMSBandwidth AlternativesBusiness Applications of the

InternetBusiness Value of the InternetBusiness Value of

Telecommunications Networks

Cellular Phone SystemClient/Server NetworksCoaxial CableCommunications SatellitesDownsizingExtranetsFiber-Optic CableInternet RevolutionInternet TechnologiesInternetwork ProcessorsIntranetsLegacy SystemsLocal Area Network (LAN)Modem (MOdulation -

DEModulation)

MultiplexerNetwork Architectures – OSI -

TCP/IPNetwork ComputingNetwork ManagementNetwork Operating SystemNetwork ServerNetwork TopologiesOpen SystemsPeer-to-Peer NetworksProtocolSwitching AlternativesTelecommunications ChannelsTelecommunications MediaTelecommunications Network

ComponentsTelecommunications ProcessorsTelecommunications SoftwareTrends in TelecommunicationsVirtual Private NetworkWide Area Network (WAN)Wireless LANWireless Technologies

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-49

Real World Cases

Real World Case 1 Celanese Chemicals and Others: Celanese Chemicals and Others: Wireless Business ApplicationsWireless Business Applications

Click to go toCase 1

Real World Case 2 Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value Navigation: The Business Value of GPS Networksof GPS Networks

Click to go toCase 2

Optional Case StudiesOptional Case Studies

Real World Case 3 UPS, Wells Dairy, Novell, and UPS, Wells Dairy, Novell, and GM: The Business Value and GM: The Business Value and Challenges of Wi-Fi NetworksChallenges of Wi-Fi Networks

Real World Case 4 Grant Thornton and Others: Grant Thornton and Others: Return on Investment Challenges Return on Investment Challenges of Internet Phone Systemsof Internet Phone Systems

Click to go toCase 3

Click to go toCase 4

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-50

Real World Cases

Electronic Business Systems

Chapter 7

Module III – Business Applications

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The Networked EnterpriseTrends in Telecommunica-tionsThe Internet RevolutionBusiness Use of the InternetSection IITelecommunica-tions AlternativesTelecommunica-tions ModelNetwork TopologiesBandwidth Alternatives

KEY TERMS

Copyright 2005, McGraw-Hill/Irwin, Inc. 6-51

Real World Cases

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications1- What is the business value of 1- What is the business value of

wireless technologies in the wireless technologies in the chemicals and automotive chemicals and automotive manufacturing industries? manufacturing industries? What other manufacturing What other manufacturing applications might benefit applications might benefit

from wireless from wireless technologies? technologies?

Why?Why? Return toCases Page

Return toChapter 6

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-52

Real World Cases

•Productivity Tool-Speed Repairs

•Reduce Mileage/Time Savings

The business value would include:The business value would include:

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

•Aerospace Plants•Non-Automotive Assembly Plants•Food Processing Plants

Others who could benefit from Others who could benefit from Wi-Fi include:Wi-Fi include:

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-53

Real World Cases

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

2- What are some of the 2- What are some of the business benefits of wireless business benefits of wireless technologies in finance and technologies in finance and

investments? What other investments? What other applications would you applications would you

recommend? Why? Check the recommend? Why? Check the website of Fidelity.com to help website of Fidelity.com to help

you answer.you answer.

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Real World Cases

• Target Customers with More Assets• Customer Manages Retirement Accounts• Customer Initiates Transactions

Business benefits in finance and Business benefits in finance and investments would include:investments would include:

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

Other applications may include:Other applications may include:• Interenterprise Activities • Financial Planning Customer Features

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-55

Real World Cases

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

3- What are some of the 3- What are some of the business benefits and business benefits and

challenges of using wireless challenges of using wireless technologies in retailing? technologies in retailing?

What are some other What are some other applications that might be applications that might be beneficial to consumers, as beneficial to consumers, as

well as retailers? Why?well as retailers? Why?

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-56

Real World Cases

•Employee Interaction-POS Terminals•Improve Inventory Accuracy•Improve Inventory Restocking Location•Fight Fraud•Increase Sales•Accessory Recommendations

Business benefits would include:Business benefits would include:

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-57

Real World Cases

•Customer Credit Approval

•Retail Location Available to Customers

Other applications might include:Other applications might include:

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-58

Real World Cases

•Customer Credit Approval

•Retail Location Available to Customers

•Targeted Defined Customers

Other applications might include:Other applications might include:

Celanese Chemicals and Celanese Chemicals and Others: Wireless Business Others: Wireless Business

ApplicationsApplications

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-59

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

1- What is the business value 1- What is the business value of GPS satellite tracking and of GPS satellite tracking and communications systems to communications systems to Con-Way NOW? To their Con-Way NOW? To their

customers?customers?

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Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

•Provide “Time-Definite Delivery.”

•Know Location of GPS Trucks•Monitoring of Truck and Driver•Nearest Truck Locator to Transport

•Late Delivery-Less than 1% of Orders

Business value to Con-Way would Business value to Con-Way would include:include:

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-61

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

•Assurance of On Time Deliveries

•Use Least Costly Delivery

•Meeting of Delivery Needs NOW

Customer value would include:Customer value would include:

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Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

2- Visit the website of 2- Visit the website of Qualcomm and checkout the Qualcomm and checkout the

other satellite services other satellite services besides OmniTRACKS. What besides OmniTRACKS. What

is the business value of is the business value of several of these services?several of these services?

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-63

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

•Quality Control Improves Goods

•Implementation of GPS Services

•Include Digital Images via GPS

•Better Coordination-Wireless Services

Business values would include:Business values would include:

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-64

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

3- What is the business value 3- What is the business value of the GPS services offered of the GPS services offered by Trimble Navigation to by Trimble Navigation to

cement companies? To other cement companies? To other types of businesses? Visit types of businesses? Visit their website to help you their website to help you

answer.answer.

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-65

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

•Real-time Information Usage

•Improved Customer Relations

•Improved Scheduling Efficiency

The Business value for Trimble The Business value for Trimble Navigation would include:Navigation would include:

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-66

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

• Generating Increased Revenues• Reducing Costs• Attracting New Customers• Increase Existing Customer

Loyalty• Develop New Market

Channels

The Business value for other types The Business value for other types of business would include would of business would include would include:include:

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-67

Real World Cases

Con-Way NOW and Trimble Con-Way NOW and Trimble Navigation: The Business Value of Navigation: The Business Value of

GPS Satellite NetworksGPS Satellite Networks

• Generating Increased Revenues• Reducing Costs• Attracting New Customers• Increase Existing Customer Loyalty• Develop New Market

Channels• Develop New Information

The Business value for other types The Business value for other types of business would include would of business would include would include:include:

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-68

Real World Cases

UPS - Wells Dairy - Novell UPS - Wells Dairy - Novell and GM: The Business Value and and GM: The Business Value and

Challenges of Wi-Fi Networks Challenges of Wi-Fi Networks

1- What are the business 1- What are the business benefits of Wi-Fi networks?benefits of Wi-Fi networks?

•Superfast Wireless Connections

•Cost is one-fourth of Existing Costs

•Productivity-45% Gain at UPS Return to

Cases Page

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Real World Cases

2- What are some of the 2- What are some of the problems faced by problems faced by companies who are companies who are

using Wi-Fi networks? using Wi-Fi networks? What are some What are some

solutions to those solutions to those problems?problems?

UPS - Wells Dairy - Novell UPS - Wells Dairy - Novell and GM: The Business Value and and GM: The Business Value and

Challenges of Wi-Fi Networks Challenges of Wi-Fi Networks

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Real World Cases

Problems (and solutions) Problems (and solutions) would include:would include:

•“No Laptop” Meeting Policy•Determine Wireless Area Needs•Cost Versus Benefit Gains•Security of Information Available

UPS - Wells Dairy - Novell UPS - Wells Dairy - Novell and GM: The Business Value and and GM: The Business Value and

Challenges of Wi-Fi Networks Challenges of Wi-Fi Networks

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-71

Real World Cases

3- What are some other 3- What are some other business uses for Wi-Fi business uses for Wi-Fi

networks not mentioned in networks not mentioned in this case? What are their this case? What are their

business benefits and business benefits and challenges?challenges?

UPS - Wells Dairy - Novell UPS - Wells Dairy - Novell and GM: The Business Value and and GM: The Business Value and

Challenges of Wi-Fi Networks Challenges of Wi-Fi Networks

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Real World Cases

Other business uses:Other business uses:•Think Outside the Box •Be Creative in Responses•Providing Solid Business Benefits

Return toCases Page

UPS - Wells Dairy - Novell UPS - Wells Dairy - Novell and GM: The Business Value and and GM: The Business Value and

Challenges of Wi-Fi Networks Challenges of Wi-Fi Networks

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Real World Cases

Other business uses:Other business uses:•Think Outside the Box •Be Creative in Responses•Providing Solid Business Benefits

•Recognize Challenges in Wi-Fi Network Return to

Cases Page

UPS - Wells Dairy - Novell UPS - Wells Dairy - Novell and GM: The Business Value and and GM: The Business Value and

Challenges of Wi-Fi Networks Challenges of Wi-Fi Networks

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-74

Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

1- What are the main 1- What are the main business benefits that can business benefits that can be gained by companies be gained by companies

that switch to VOIP that switch to VOIP telephone systems?telephone systems?

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Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

The main business benefits would include:The main business benefits would include:•Geographically Dispersed Employees•Reduction Communication Costs

•Existing Lines•Analog to Digital Calls

•Let Customer Service Handle•E-mail•Web Contacts•Phone Calls

•Go to Centralized Voice Processing•Reduced Travel/Long-distance Costs

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-76

Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

2- What are some of the 2- What are some of the major cost factors that major cost factors that

may limit a positive rate may limit a positive rate of return from of return from

investments in VOIP investments in VOIP projects?projects?

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-77

Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

Major costs factors that may limit a Major costs factors that may limit a positive rate of return might include:positive rate of return might include:

•Upfront Costs-High•Lower Traditional Long-distance Charges

•Not-included Behind-the-Scenes Expenses

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-78

Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

3- Should more companies 3- Should more companies switch to VOIP systems? switch to VOIP systems?

Visit the websites of Avaya, Visit the websites of Avaya, eOn Communications, and eOn Communications, and Cisco Systems to view their Cisco Systems to view their VOIP news, products, and VOIP news, products, and

services to help you answerservices to help you answer ..

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-79

Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

A decision to switch would be A decision to switch would be influenced by:influenced by:•Voice Communication Level Usage

•Audio-/Video-conferencing •Currently Used Applications•Age of Analog/Digital Systems

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Copyright 2005, McGraw-Hill/Irwin, Inc. 6-80

Real World Cases

Grant Thornton and Others: Grant Thornton and Others: Return on Investment Return on Investment

Challenges of Internet Phone Challenges of Internet Phone Systems Systems

A decision to switch would be A decision to switch would be influenced by:influenced by:•Voice Communication Level Usage

•Audio-/Video-conferencing •Currently Used Applications•Age of Analog/Digital Systems•Travel Needs Replaced by VOIP Return to

Cases Page