Enterprise VoIP system sales are now far outpacing those of legacy systems. In fact, as of last year, VoIP system sales showed 31 percent growth over the year before, while sales of traditional voice systems fell by 20 percent during the same period. The two fastest growing VoIP system vendors, according to the study, areCisco Systems and Avaya. Meanwhile, VoIP system vendors Alcatel, NEC, Nortel, and Siemens are all treading water.
Worldwide PBX revenue declined 1.4 percent in 2005, the turning point year. In 2004, the market’s total revenue was $8.5 billion. The sector hit a low of $8.38 billion in 2005. On the other hand,IP PBX showed an upward trend, thanks to VoIP growth. IP PBX revenue grew by at least 15 percent to reach $2.88 billion. Total revenue from converged PBXs grew by 10 percent to $1.38 billion. The combined revenue of $4.26 billion from IP PBX sales and converged PBX sales exceeded the traditional PBX revenue of $4.12 billion for the first time that year, according toGlobal Sources
Source:tmcnet.com
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