Internet Telephony Gateways

1.0 Executive Summary

1.1 IP-Telephony Gateway Technology Evolves Rapidly   1-1

1.2 Toll Savings Drive Impressive Market Growth   1-3

1.3 Standards and Regulations Lag   1-5

1.4 Enterprises Progress from Trials to Deployments   1-7

1.5 Carrier-Class Products Emerge   1-8

1.6 Voice and Data Suppliers Clash as Networks Converge   1-9

2.1 How IP Telephony Works   2-1

2.2 IP Telephony's Evolution   2-2

2.3 Types of IP Telephony   2-4

    Facsimile   2-4

    PC to PC   2-5

    PC to Phone   2-5

    Phone to Phone   2-6

2.4 IP Suitability for Voice   2-7

2.5 IP-Telephony Gateway Technical Challenges   2-9

    Voice Quality   2-9

    Reliability   2-14

    Network Management and Administration   2-15

    Interoperability   2-16

    Scaling   2-17

2.6 Gateway Configuration Alternatives   2-18

    IP-Telephony Gateway Connected to a PBX or Key System   2-18

    IP-Telephony Gateway Incorporated in Router or Access Concentrator   2-19

    IP-Telephony Gateway Incorporated in PBX or Key System   2-20

    IP-Telephony LAN Server with PBX Functions   2-20

    IP-Telephony Virtual Private Network   2-21

2.7 Gatekeeper Functions   2-23

3.1 FCC Proceedings   3-2

    ACTA Petition   3-2

    Access Proceeding   3-3

    Universal Service Implications   3-4

    Internet Notice of Inquiry   3-6

    FCC's International Initiative   3-6

3.2 European Union's Internet Voice Notice   3-10

3.3 World Trade Organization Agreement   3-11

3.4 Countries Banning or Regulating IP Voice   3-13

4.1 International Telecommunications Union   4-3

    Store-and-Forward Fax (T.37)   4-6

    Real-Time Fax (T.38)   4-7

4.2 Internet Engineering Task Force (IETF)   4-7

    IP Version 6   4-8

    Resource Reservation Protocol (RSVP)   4-9

    Differentiated Services   4-9

    Multiprotocol Label Switching (MPLS)   4-10

    Real-Time Protocol / Real-Time Transport Control Protocol   4-11

    Session Initiation Protocol (SIP)   4-11

    Call Processing Syntax   4-12

    Gateway Location Protocol   4-12

    Simple Gateway Control Protocol (SGCP)   4-13

    Media Gateway Control Protocol (MGCP)   4-14

4.3 European Telecommunications Standards Institute   4-14

    Open Settlement Protocol (OSP)   4-16

    TIPHON Net   4-16

4.4 International Multimedia Teleconferencing Consortium   4-17

4.5 Technical Advisory Council   4-18

4.6 Directory Services   4-20

    Lightweight Directory Access Protocol (LDAP)   4-20

5.1 Toll Savings   5-1

5.2 Access Line Reductions   5-4

5.3 Voice / Data Network Consolidation   5-4

5.4 Call Centers   5-6

    Voice-Enabled Web Sites   5-6

    Help Desks   5-7

5.5 PBX Replacement   5-7

5.6 Unified Messaging   5-10

5.7 Facsimile Transmission   5-11

    Real Time   5-13

    Store and Forward   5-13

5.8 Collaborative Voice and Data   5-15

5.9 Videoconferencing   5-15

6.1 Cost Savings Drive Market   6-3

    Toll Savings   6-3

    Facilities Consolidation   6-4

6.2 Data Traffic Assumes Leadership   6-5

6.3 Broad Adoption of IP Spurs Growth   6-8

6.4 Voice Quality Improves   6-9

6.5 Carrier-Class Solutions Emerge   6-11

6.6 Reliability Still Trails Traditional Voice   6-12

6.7 PSTN Integration Issues and Options   6-13

6.8 Standards Lag Slows Market Acceptance   6-14

6.9 Regulatory Uncertainty Creates Risk   6-15

6.10 Billing and Settlement Solutions Appear   6-16

6.11 Implementation Challenges Bring Revenue Opportunities   6-18

    Network Planning   6-19

    Installation   6-19

    Administration   6-19

    Security and Fraud Prevention   6-20

    Migration   6-21

7.1 Customer Requirements   7-2

7.2 Market Inhibitors   7-3

7.3 Market Accelerators   7-5

7.4 Global and U.S. Market Forecasts   7-6

7.5 Market Forecasts by Business Size   7-11

    Small and Medium Business Market   7-12

    Large Business Market   7-12

7.6 Network Planning and Installation Revenues Forecast   7-13

7.7 Market Share by Supplier Type   7-14

7.8 Impact on PBX Market   7-15

7.9 Market Strategies for Success   7-18

    PBX Vendors   7-18

    Data Networking Vendors   7-19

    New Entrants   7-20

8.1 Customer Requirements   8-2

8.2 Market Inhibitors   8-3

8.3 Market Accelerators   8-4

8.4 Global and U.S. Market Forecasts   8-5

8.5 Market Forecasts by Service-Provider Category   8-8

    Next-Generation Telco Market   8-9

    Internet Service Provider Market   8-10

    Incumbent Telco Market   8-11

8.6 Market Share by Supplier Type   8-12

8.7 Impact on Central-Office Equipment Market   8-13

8.8 Market Strategies for Success   8-13

    Telephony Equipment Vendors   8-13

    Data Networking Vendors   8-14

    New Entrants   8-15

9.1 Value-Added Applications   9-2

9.2 Architecture   9-4

9.3 Reliability   9-5

9.4 Interfaces   9-6

9.5 Network Management   9-8

9.6 Security   9-9

9.7 Fit with Legacy Systems   9-10

9.8 Fax Capabilities   9-11

9.9 Scaling   9-12

10.1 Ascend Communications   10-1

10.2 Cisco Systems   10-3

10.3 Clarent   10-5

10.4 eFusion   10-6

10.5 Ericsson   10-8

10.6 Hypercom   10-9

10.7 IBM   10-10

10.8 Inter-Tel   10-11

10.9 Lucent Technologies   10-12

10.10 Motorola   10-16

10.11 NetCentric   10-18

10.12 NetSpeak   10-19

10.13 Nokia (Vienna Systems)   10-21

10.14 Nortel (Bay / Micom)   10-23

10.15 Nuera   10-26

10.16 Open Port Technology   10-27

10.17 Siemens   10-29

10.18 VocalTec   10-31

1a Global IP-Telephony Gateway & Gatekeeper Shipment Revenues 1999-2003   1-4

3a U.S. Net Settlement Payments   3-8

6a Global Voice and Data Service Revenues 1999-2003   6-6

6b Global Voice and Data Traffic 1993-2003   6-7

6c Worldwide Internet Growth 1997-2001   6-8

7a Global IP-Telephony Gateway & Gatekeeper Enterprise Shipment Revenues 1999-2003   7-8

7b U.S. Share of IP-Telephony Gateway & Gatekeeper Enterprise Shipment Revenues 1999-2003   7-10

7c Global IP-Telephony Gateway & Gatekeeper Revenues by Enterprise Size 1999-2003   7-11

7d IP Gateway Enterprise Market Share by Supplier Type - 1999   7-14

7e IP Gateway Enterprise Market Share by Supplier Type - 2003   7-14

7f IP-Telephony Gateway Impact on PBX Lines Shipped: U.S. Market 1999-2003   7-16

8a Global IP-Telephony Gateway & Gatekeeper Carrier Shipment Revenues 1999-2003   8-6

8b Global IP-Telephony Gateway & Gatekeeper Revenues from Next-Generation Telcos 1999-2003   8-9

8c Global IP-Telephony Gateway & Gatekeeper Revenues from ISPs 1999-2003   8-10

8d Global IP-Telephony Gateway & Gatekeeper Revenues from Incumbent Telcos 1999-2003   8-11

8e IP Gateway Carrier Market Share by Supplier Type - 1999   8-12

8f IP Gateway Carrier Market Share by Supplier Type - 2003   8-12

2a IP-Voice Compression Techniques   2-10

3a Regulation of IP-Voice Services in Selected Countries   3-14

3b Countries Banning Call-Back Services   3-16

4a Basic Components of H.323   4-5

7a IP-Telephony Gateway & Gatekeeper Global Enterprise Market Forecasts 1999-2003   7-7

7b IP-Telephony Gateway & Gatekeeper U.S. Enterprise Market Forecasts 1999-2003   7-9

8a IP-Telephony Gateway & Gatekeeper Global Carrier Market Forecasts 1999-2003   8-5

8b IP-Telephony Gateway & Gatekeeper U.S. Carrier Market Forecasts 1999-2003   8-8

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