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Callbacker for iPhone: Make Low-Cost, VoIP, International Phone Calls

Apr 19, 2012 - DemandVoIP today announces Callbacker 1.1 for iPhone, an update to their Social Networking app that allows iPhone users to make low-cost, VoIP, international phone calls. Featuring proprietary Callback technology, the app provides high quality IP telephony independent of the quality of the Internet connection. Callbacker provides inexpensive long distance service to more than 190 countries, includes iPhone Address Book and Dialpad integration, and uses credits purchased via the App Store.