US: 24 million VoIP subscribers in 2008, Vonage, Time Warner, Cablevision market leaders
January 15, 2006
VoIP service revenue in North America will grow 18x between 2004 and 2009, from $1.24 billion to $23.4 billion, with subscriber numbers increasing to 24 million. — That's a pretty expensive cost per subscriber, if you ask us!