IDC:
“The overall market is projected to increase at a compound annual growth rate of 45% to reach a revenue base of $15.1 billion by the year 2007,” noted Tom Valovic, director of IDC’s IP Telephony program. IDC is projecting the best growth in enterprise systems such as IP-PBXs. For this year, the current forecast shows a 66% increase in equipment sales to enterprises.
| WORLDWIDE IP TELEPHONY EQUIPMENT REVENUE, 2001–2007 ($M) | |||||||
| 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 1846 | 2398 | 3336 | 4945 | 7592 | 11356 | 15142 |
| Growth (%) | NA | 30% | 39% | 48% | 54% | 50% | 33% |