Free Phone Calls http://itunes.apple.com/app/viber-free-phone-calls/id382617920?mt=8 http://www.appbank.net/2010/12/07/iphone-application/196264.php http://blog.isnext.net/issy/archives/571 送信はTCP4244宛て平文 送信先はAmazon EC2上にある…