“Pinger already delivers free text messaging with its Textfree app but the company will soon take it up a notch by offering free phone calls too.,” writes IntoMobile’s Marin.
“Pinger will give you a phone number and calls will be made using a data network, so it’s a VoIP call. It will apparently work with WiFi and 3G networks (via a MiFi-like device I’m guessing),” he writes.
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Pinger adds free VoIP calling to iPod touch