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IP PBX and IP Centrex: Growth of VoIP in US Enterprise 2004-2009
a market research report
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Voice over Internet protocol (VoIP) is finding its way into enterprises of all types and sizes, and presently is one of the few bright spots across an otherwise gloomy telecommunications landscape. Decision makers that buy enterprise voice services have made a collective commitment to invest in VoIP within the enterprise. Enterprise VoIP has enjoyed success despite harsh economic conditions, proving that commitment to this service is real. The question is not whether VoIP will become the predominant form of enterprise voice; the big questions are when, how, and by whom.
In this market analysis, Insight Research parses the PBX market into four segments: the traditional PBX; IP PBXs built using LAN switches, media gateways, and servers; IP-enabled PBXes that gateway to the LAN/WAN; and converged PBXes that are aware of both TDM and IP endpoints in the native modes. The products of PBX vendors with the largest share of the PBX market (Avaya, Nortel) are inspected, as well as newer PBX vendors (Cisco, 3Com). Traditional Centrex and IP Centrex service providers such as Verizon, Qwest, and GoBeam are also put under the microscope to detail the prospects for growth across the entire enterprise voice segment. This compelling study forecasts voice-extension sales by type of system including TDM, VoIP, legacy Centrex, and IP Centrex, looking closely at the associated sales revenue.
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Report Excerpt
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VoIP technology adoption depends on the commitment of enterprises to truly migrate to converged voice and data networks. VoIP equipment never was and never will be the least expensive way to deliver a voice extension within the enterprise. While it is true that some VoIP phone systems, such as those offered by Altigen, are less expensive than comparable TDM units, this is more the exception than the rule. The typical cost of a VoIP extension from the legacy vendors (per-port platform costs plus IP-phone costs) is only marginally higher (around 25 percent) than that of a digital extension. Likewise, the pure play IP PBX vendors currently offer per-seat pricing (i.e., the cost of both the associated hardware and the phone) that is also very competitive—again, about 25 percent higher than digital TDM-based extension pricing.
While some analysts predict that the VoIP extension costs will achieve cost parity with their TDM counterparts, INSIGHT does not. Because the TDM base is contracting, and there is little R&D money devoted to it, the price of a TDM-based extension is destined to...
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Market Segmentation
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-Total Premises vs. Centrex Installed Base
-Total Addressable Market for Premises Equipment
-Total Premises-Based Installed Extensions
-Premises Extension Shipments by Category
-Total Premises Equipment Revenues
-Installed Base of Legacy vs. VoIP Extensions
-Premises Vendor Line Shipments: TDM vs. VoIP
-Premises Vendor VoIP Extension Shipments
-Legacy Vendor Total VoIP Extensions Shipped, 2002 and 2003 (Millions)
-Total Legacy Extensions Shipped by Vendor: TDM vs. VoIP
-IP PBX VoIP Extensions Shipped
-Percentage of Total Premises VoIP Extension Market
-Relative VoIP Extension Shipments
-Legacy PBX Vendor TDM Extension Shipments
-Legacy PBX Vendor VoIP Extension Shipments
-IP PBX Vendor Market Shares
-Legacy Centrex Installed Base
-Legacy Centrex Line Segment Details
-Total Enterprise Voice Extension Installed Base
-Total Enterprise Extension Shipments
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Table of Contents
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Chapter I
EXECUTIVE SUMMARY
1.1 VoIP in the Enterprise Market
1.2 Market Segments & Definitions
1.3 Market Forecast and Market Analysis
Chapter II
BACKGROUND
2.1 Market Segments and Definitions
2.1.1 PBXes and KTSes
2.1.2 Hybrids
2.1.3 The Uniqueness of the PBX
2.2 Network Switching: Centrex
2.2.1 Centrex vs. PBX
2.2.2 Two Forms of IP Centrex
2.2.3 Softswitch
2.3 VoIP Technology in the Premise
2.3.1 Understanding Internet Protocols
2.3.2 Voice over IP: Standards, Protocols, and Architectures
2.3.2.1 VoIP Media Protocols
2.3.2.2 VoIP Signaling Protocols
2.3.2.3 VoIP Gateways & Protocols
2.3.2.4 The H.323 Standard
2.3.3 An IP-Enabled Phone System
Chapter III
THE ENTERPRISE VOICE MARKET TODAY
3.1 Enterprise Voice Market Installed Base
3.2 Premises Voice Total Addressable Market
3.3 Premises Voice Market Vectors: Base Year, End Year
3.4 The Rise of VoIP in the Premises
3.4.1 Premises Equipment Provider Market Shares
3.4.2 Key/Hybrid Market
3.4.3 TDM and IP Extension Shipments
3.5 Centrex Market
3.6 Next Generation IP Centrex Market
Chapter IV
ENTERPRISE VOIP DRIVERS AND INHIBITORS
4.1 Premises VoIP Drivers
4.1.1 VoWLAN
4.1.2 Cost Savings
4.1.3 Remote Access
4.1.4 Inter-Site Networking
4.1.5 Branch Offices
4.1.6 Moves, Adds, and Changes (MAC)
4.1.7 Productivity Enhancing Applications
4.1.8 Toll Savings
4.1.9 Call Centers
4.2 Premises VoIP Inhibitors
4.2.1 Availability
4.2.2 LAN/WAN Engineering
4.2.3 Training
4.2.4 Remote Access Voice Quality
4.2.5 Security
4.3 Service Providers
4.3.1 Overview
4.3.2 IP-enabled vs. Pure IP Centrex
4.3.3 Managed Premises-Based VoIP Services
4.3.4 IP Centrex and Managed Service Drivers
4.3.4.1 VoWLAN
4.3.4.2 Cost
4.3.4.3 Remote Access
4.3.4.4 Inter-Site Networking
4.3.4.5 MAC
4.3.4.6 Productivity Enhancing Applications
4.3.4.7 Toll Savings
4.3.4.8 Call Centers
4.3.5 VoIP Obstacles
4.3.5.1 Availability
4.3.5.2 LAN/WAN Network Engineering
4.3.5.3 Training
4.3.5.4 Remote Access Voice Quality
4.3.5.5 Security
Chapter V
VENDORS
5.1 Legacy Vendors
5.1.1 Avaya
5.1.2 Nortel
5.1.3 NEC
5.1.4 Siemens
5.1.5 Mitel
5.1.6 Inter-Tel
5.2 IP PBX Vendors
5.2.1 Vertical Networks
5.2.2 Alcatel
5.2.3 3Com
5.2.4 Cisco
5.3 Service Provider Profiles
5.3.1 Verizon
5.3.2 Qwest
5.3.3 AT&T
5.3.4 Sprint
5.3.5 MCI
5.3.6 GoBeam
Chapter VI
MARKET FORECASTS
6.1 Market Summary
6.2 Forecast Summary
6.3 Market Forecast
Appendix
GLOSSARY
TABLE OF FIGURES
Chapter I
I-1 Comparison of Total Premises vs.
Centrex Installed Base 1995-2009
I-2 Total Addressable Market: Premises
Equipment Revenue
Chapter II
II-1 Centrex IP Enabled Variant
II-2 Softswitch Architecture in the Centrex Environment
II-3 Protocols for Real-Time Communications
II-4 Typical H.323 Network Architecture
II-5 Integrated H.323 gateway/gatekeeper residing at a digital station port.
Chapter III
III-1 Comparison of Premises vs. Centrex
Installed Base 1995-2009
III-2 Comparison of Premises vs. Centrex
Installed Base: Detailed Contribution Comparison, 1995-2003
III-3 Total
Addressable Market for Premises Equipment, 1995-2003
III-4 Total
Addressable Market for Premises Equipment: Relative Contributions, 1995-2003
III-5 Total Premises-Based Installed Extensions, 2003 and 2008
III-6
Premises Extension Shipments by Category, 2003 and 2008
III-7 Total Premises Equipment Revenues, 2003 and 2008
III-8
Historical View of Legacy Premises Retirements and Shipments
III-9 Installed Base of Legacy vs. VoIP Extensions, 1995-2003
III-10 Premises Vendor Line Shipments: TDM
vs. VoIP, 2002
III-11 Premises Vendor VoIP Extension Shipments, 1999-2003
III-12 Legacy Vendor Total VoIP Extensions Shipped, 2002 and 2003
III-13 Total Legacy Extensions Shipped by Vendor: TDM vs. VoIP, 2003
III-14 IP PBX VoIP Extensions Shipped, 2002 and 2003
III-15 Vendor
Comparison: Percentage of Total Premises VoIP Extension Market, 2002 and
2003
III-16 Relative VoIP Extension Shipments 2002
III-17 Relative
VoIP Extension Shipments, 2003
III-18 Legacy PBX Vendor TDM Extension Shipments, 2002 and 2003
III-19 Legacy PBX Vendor VoIP Extension Shipments, 2002 and 2003
III-20 IP PBX Vendor Market Shares, 2002 and 2003
III-21 Legacy Centrex Installed Base, 1995-2003
III-22 Legacy
Centrex Line Segment Details, 2002
Chapter V
V-1 Legacy
Centrex Installed Base, 1995-2003
V-2 Legacy Centrex Relative Shares
Chapter VI
VI-1 Total Enterprise Voice Extension Installed
Base, Year End 2003
VI-2 Total Enterprise Voice Extension
Installed Base, 2009
VI-3 Total Enterprise Extension Shipments,
1999-2009
VI-4 Comparison of Total Premises vs. Centrex Installed
Base 1995-2009
VI-5 Comparison of Total Premises vs. Centrex
Installed Based-Detailed Contribution
VI-6 Total Enterprise
Extension Installed Base, 1999-2009
VI-7 Relative Shipments of
VoIP Extensions
VI-8 VoIP Extension Shipments, 1999-2009
VI-9 Total VoIP Extension Installed Base, 1999-2009
VI-10 Total
Addressable Market: Premises Equipment Revenue
VI-11 Total Addressable
Market for Premises Equipment: Relative Contributions in terms of Revenue,
1995-2009
VI-12 Premises Extension Revenues, 1999-2009
VI-13
Installed Base of Legacy vs. VoIP Extensions, 1995-2009
TABLE OF TABLES
Chapter I
I-1 Pure IP Centrex Service Provider Comparison
Chapter III
III-1 Comparison of Premises vs. Centrex Installed
Base 1995-2009
III-2 Comparison of Premises vs. Centrex Installed Base:
Detailed Contribution Comparison, 1995-2003
III-3 Total Addressable
Market for Premises Equipment, 1995-2003
III-4 Total Addressable Market
for Premises Equipment: Relative Contributions, 1995-2003
III-5 Historical View of Legacy Premises Retirements and Shipments,
1995-2003
III-6 Installed Base of Legacy vs. VoIP Extensions, 1995-2003
III-7 Premises Vendor VoIP Extension Shipments, 1999-2003
III-8 Legacy
Centrex Line Segment Details, 2002
III-9 Pure IP Centrex Service Provider Comparison
Chapter VI
VI-1 Total Enterprise Extension Shipments, 1999-2009
VI-2 Comparison of Total Premises vs. Centrex Installed Base 1995-2009
VI-3 Comparison of Total Premises vs. Centrex Installed Based-Detailed
Contribution Comparison,
VI-4 Total Enterprise Extension Installed
Base, 1999-2009
VI-5 Relative Shipments of VoIP Extensions
VI-6 VoIP Extension Shipments, 1999-2009
VI-7 Total VoIP Extension
Installed Base, 1999-2009
VI-8 Total Addressable Market: Premises
Equipment Revenue
VI-9 Total Addressable Market for Premises Equipment:
Relative Contributions in terms of Revenue, 1995- 2009
VI-10 Premises
Extension Revenues, 1999-2009
VI-11 Base of Legacy vs. VoIP Extensions,
1995-2009
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