Q1 2006 Ent Voip World Wide Market Shares

• Market Shares are for the most recent 12 quarters prior to the publication date
• Market Shares are provided in Units, Ports/Lines, and Manufacturer Sales

• 3Com,
• Alcatel,
• Avaya,
• Cisco,
• Mitel,
• NEC,
• Nortel,
• ShoreTel,
• Siemens,
• Sphere,
• Quintum,
• VegaStream,
• and Vertical

• Enterprise IP Telephony,
• LAN Telephony,
• Converged Telephony,
• IP Phones,
• PBXs,
• KTS,
• and Enterprise VoIP Gateways.

SEGMENTS

Executive Summary

Market Shares

Methodology

Product Definitions

Product Segmentation

TABLES

Table 1. WW Enterprise Voice Revenue ($)

Table 2. WW Enterprise Voice Revenue ($) Market Shares

Table 3. WW Enterprise Voice Port/Line Shipments

Table 4. WW Enterprise Voice Port/Line Shipment Market Shares

Table 5. WW Enterprise Telephony Revenue ($)

Table 6. WW Enterprise Telephony Revenue ($) Market Shares

Table 7. WW Enterprise Telephony Port Shipments

Table 8. WW Enterprise Telephony Port Shipment Market Shares

Table 9. WW Enterprise IP Telephony Revenue ($)

Table 10. WW Enterprise IP Telephony Revenue ($) Market Shares

Table 11. WW Enterprise IP Telephony Port Shipments

Table 12. WW Enterprise IP Telephony Port Shipment Market Shares

Table 13. WW IP Phone Revenue ($)

Table 14. WW IP Phone Revenue ($) Market Shares

Table 15. WW IP Phone Unit Shipments

Table 16. WW IP Phone Unit Shipment Market Shares

Table 17. WW LAN Telephony (IP-Only) Port Shipments

Table 18. WW LAN Telephony (IP-Only) Port Shipment Market Shares

Table 19. WW LAN Telephony (IP-Only) Call Processors Rev ($)

Table 20. WW LAN Telephony (IP-Only) Call Processors Rev ($) Market Shares

Table 21. WW LAN Telephony (IP-Only) Call Processors Unit Shipments

Table 22. WW LAN Telephony (IP-Only) Call Processors Unit Shp Shares

Table 23. WW Converged Telephony (TDM/IP) Port Shipments

Table 24. WW Converged Telephony (TDM/IP) Port Shipment Market Shares

Table 25. WW Converged Telephony (TDM/IP) Revenue ($)

Table 26. WW Converged Telephony (TDM/IP) Revenue ($) Market Shares

Table 27. WW Traditional Telephony (PBX/KTS) Revenue ($)

Table 28. WW Traditional Telephony (PBX/KTS) Revenue ($) Market Shares

Table 29. WW Traditional Telephony (PBX/KTS) Ports/Line Shipments

Table 30. WW Traditional Telephony (PBX/KTS) Ports/Line Market Shares

Table 31. WW PBX Revenue ($)

Table 32. WW PBX Revenue ($) Market Shares

Table 33. WW PBX Ports/Line Shipments

Table 34. WW PBX Ports/Lines Market Shares

Table 35. WW Key Telephone System (KTS) Revenue ($)

Table 36. WW Key Telephone System (KTS) Revenue ($) Market Shares

Table 37. WW Key Telephone System (KTS) Ports/Line Shipments

Table 38. WW Key Telephone System (KTS) Port/Line Market Shares

Table 39. WW Enterprise VoIP Gateway Revenue ($)

Table 40. WW Enterprise VoIP Gateway Revenue ($) Market Shares

Table 41. WW Enterprise VoIP Gateway Port Shipments

Table 42. WW Enterprise VoIP Gateway Port Shipment Market Shares

Table 43. LAN Telephony (IP-Only) Products

Table 44. Converged Telephony (TDM/IP) Products

Table 45. IP Phone Products

Table 46. Enterprise VoIP Gateway Products

FIGURES

Enterprise Voice Segmentation Block Diagram and Table Map

Figure 1. WW Enterprise Voice Revenue Q4 2003

Figure 2. WW Enterprise Telephony Revenue Q4 2003

Figure 3. WW Enterprise Telephony Revenue Q1 2001 - Q4 2003

Figure 4. WW Enterprise IP Telephony Revenue Q4 2003

Figure 5. WW Enterprise IP Telephony Revenue Q1 2001 - Q4 2003

Figure 6. WW Enterprise IP Telephony Port/Line Market Shares Q1 2001 - Q4 2003

Figure 7. WW LAN Telephony (IP-Only) Port/Line Market Shares Q1 2001 - Q4 2003

Figure 8. WW Converged Telephony (TDM/IP) Market Shares Q1 2001 - Q4 2003

Figure 9. WW IP Phone Market Shares Q1 2001 - Q4 2003