STOCKHOLM, July 1, 2011 /PRNewswire/ -- Rebtel, the world's largest mobile VoIP company after Skype (based on revenue), today announces it's giving away 2 million minutes of free calls to Pakistan. (Logo: http://photos.prnewswire.com/prnh/20110701/SF29431LOGO) In an effort to show gratitude to the c
Source : http://www.prnewswire.com/news-releases/rebtel-giv...