Table of Contents

• Executive Summary
  
• PBX Market Overview
  
• Microsoft Enters the Market
  
• Steady IP Growth Continues to Shape Market Share
  
  • Market Shares—IP vs. Total Market
    
  • Geographic IP Line Shipments
    
• PBX Forecast Through 2011
  
  • Traditional/IP PBX Shipment Forecast
    
  • Traditional/IP PBX Revenue Forecast
    
• Insight From the Users’ Perspective: The Move is on to IP
  
  • Factors Justifying IP PBX Purchase are Expanding
    
  • Users Focus on Network Security and Performance Considerations
    
  • Near-Term, Traditional Lines are Still a Factor
    
  • Long-Term, the Move is to IP
    
  • SIP has Increasing Influence on IP PBX Purchase Decisions
    
• Methodology
  
• Related In-Stat Reports
  
• Glossary
  

List of Tables

• Table 1. Vendor IP vs. Total PBX Market Shares—2006
  
• Table 2. Vendor IP vs. Total PBX Market Shares—1H07
  
• Table 3. Geographic IP Line Shipment 2006 + 1H07
  
• Table 4. Line Shipment Forecast–Traditional + IP PBX, 2006–2011
  
• Table 5. Regional IP PBX Line Shipment Forecast, 2006–2011
  
• Table 6. PBX Average Selling Price (US$)—Traditional and IP PBX, 2006–2011
  
• Table 7. Revenue Forecast ($US Millions)—Traditional + IP PBX, 2006–2011

List of Figures

• Figure 1. IP Line Revenue Forecast (US$ in Millions), 2006–2011
  
• Figure 2. Line Shipment Forecast (US$ in Millions)—Traditional + IP PBX, 2006–2011
  
• Figure 3. Revenue Forecast (US$ in Millions)–Traditional + IP PBX, 2006–2011
  
• Figure 4. Justification for IP PBX Purchase
  
• Figure 5. Technical Areas of Most Concern
  
• Figure 6. IP PBX Deployment Strategies
  
• Figure 7. Long-Term Telephone Deployment Strategy
  
• Figure 8. SIP’s Influence on IP PBX Purchase Decisions