Total revenue from spending on enterprise equipment reached $98.3 billion in 2005, an increase of 6.9 percent over 2004, and is expected to climb to $104.5 billion in 2006.
Matt Flanigan, president of the TIA, told internetnews.com that computer-telephony integration (CTI) was the fastest-growing component of the enterprise market in 2005 with a 10.5 percent increase to $5.7 billion.
Flanigan said that companies are choosing solutions like VoIP and video conferencing in order to maintain a competitive advantage over their rivals.
"IP technology has caught on so well and is so much more efficient for companies to sign onto because it gives them advantages the old technologies do not have. They need this to remain leaders in their respective fields," he said.
Flanigan said that as older PBXs come off line, most are being replaced by IP-PBXs.
Spending on CTI equipment will continue to grow through 2009, said Flanigan, who expects a six percent growth rate in this sector this year.