Here is an excerpt of a release on how fast IP-PBX sales are growing. This segment of the market is doing better than ever.
PBX Market Jumps 11% in 2004, Fueled by Hot IP PBX Segment
Annual PBX/KTS system revenue broke the $6 billion barrier this year, growing 11% between 2003 and 2004, from $5.5 to $6.1 billion, and is expected to grow to $9.1 billion by 2008, representing a five-year CAGR of 10%. The number of PBX/KTS lines shipped worldwide grew to 26.6 million in 2004, 19% higher than in 2003.
"2004 was a great year for the PBX market," said Infonetics Research's Matthias Machowinski, directing analyst for enterprise voice and data. "Not only is the overall market growing at larger than expected rates, but the IP PBX segment is growing ferociously, with 50%-plus growth between 2003 and 2004. Successful vendors are recognizing the shifts in the market and have moved their products from TDM into the IP realm. The TDM segment, which one year ago still accounted for half the market, is now less than a third."
