"The corded PBX market (excluding micro PBX products) declined by 3% year-on-year in Q2 2012 (period April to June 2012 inclusive), driven by a 6% year-on-year volume decline in the below 100 extensions market, while the above 100 Extensions market stagnated ending flat year-on-year, according to the latest figures released by MZA," the article explains.
MZA reports that Cisco at 14%; Avaya at 12%; NEC at 11%; Panasonic at 10% of global market share of premise based IP-PBX in >100 extensions in 2Q2012, which was similar to last year.
In less than 100 extensions, Panasonic supplanted NEC, the Q2 2011 market leader.
"North America continued to dominate the market for IP deployments with just under two million extensions deployed to the desktop this quarter...Analysts at MZA say this accounted for an IP extension penetration rate of 65% into total extensions for North America, by far the highest rate globally."
"Infonetics predicts a cumulative $377 billion will be spent on business and residential/SOHO VoIP services over the 5 years from 2012 to 2016, driven primarily by SIP trunking and hosted VoIP/UC services." I have no idea if that means $75 B per year on average or it will reach $377B in 5 years. Probably the $75B average.
"NTT, the perennial leader of residential VoIP market, topped 14 million subscribers in 2Q12" - globally obviously.
"Roughly 15%–20% of all new IP PBX lines sold are part of a managed service or outsourced contract, making managed IP PBX the largest segment of business VoIP services." WIND and TDS offer managed PBX.
Global "SIP trunking revenue grew 23% in the first half of 2012 compared to the second half of 2011, led by strong activity in North America."