Worldwide cable telephony subscribers increased to over 22 mln in 2006, up sharply from 15.8 mln in 2005. Cable telephony service revenues are also growing at a rapid pace and are projected to reach $10.4 bln in 2007, up from $7.9 bln in 2006. North America will account for two-thirds of the worldwide service revenues in 2007. In a few countries, the number of VoIP-based cable telephony subscribers has already exceeded the number of circuit-switched cable telephony subscribers. One of these countries is the US, where there are over 6.6 mln VoIP subscribers and just 2.8 mln circuit-switched subscribers. Cable telephony’s growth spurt in the US market has been a relatively recent phenomenon. According to Ин-Стат US consumer survey, 42% of all US cable telephony subscribers signed up for the service during the past 12 months.