It's indeed impressive. Skype's Big Blog writes, "700 million minutes of free Skype-to-Skype calls each day. To put it in perspective, 700 million is the equivalent of going around the earth 28,000 times in one day, if each minute represents a mile. Or 17,400 times if each minute is a kilometer." Some more perspective - 300 million minutes of video calls is nearly more than the number of Americans (330 million). Of course, this 700 million pales in comparison to the U.S.'s $14.6 trillion deficit where you could stacking $100 dollar bills would reach from the Earth to the edge of the universe 10X. Ok, maybe not, but $14.6 trillion is a pretty big number...
Amazingly, it has 700 million daily minutes of Skype-to-Skype calls. Though I'm a bit surprised video calls is only 42% of that 700 million. I would have expected it to be over 50%. I know most of my Skype calls are video, but I suppose if calling Skype-to-Skype to an international country might be better to do voice-only which uses less bandwidth than a video call. Heck, I know when my kids call their grandmother over video we sometimes have to switch to just voice due to limited DSL upstream bandwidth on her end. Of course, I need to factor in all the people who use Skype mobile apps (sometimes voice, sometimes voice + video calls) or Skype Connect (SIP) which is voice-only SIP-based calls to PSTN numbers. Lastly, there are many people who make Skype-to-PSTN calls, which is Skype's bread-and-butter revenue stream. So I guess it's a good thing for Skype that not everyone is making free video calls.
