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| Since its founding in 1996, deltathree has been a leading provider of Voice over Internet Protocol (VoIP) communications products and services. deltathree has developed a new line of CallBack VoIP Products that enable users to make low-cost calls worldwide using any mobile or regular phone. Whether you call a local access number and hang up, send an SMS message, or use the web to place a CallBack call, deltathree will call you back and connect the call to any phone number worldwide. | ||||||||||||||||||||||||||||||||||||||
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