TeleGeography estimates that Skype users are on track to make over 27 billion minutes of computer-to-computer calls this year, with about half of them used for international long distance (all free). While that sounds like a lot, it still represents just 4.4 percent of total international traffic in 2006, up from 2.9 percent in 2005.”
David Isenberg has more:
Even if most of these minutes are new minutes that are only there because C2C Skype is free, this is impressive — in part, because with new computer devices, e.g., open WiFi phones, it is getting hard to distinguish a C2C call from a Phone-to-Phone call. In addition, the new computerphones are erasing the ease-of-use factor that keeps us glued to RJ-11.