USA Today: Rebtel's deal - unlimited calling, in more places than Whatsapp

LOS ANGELES — Rebtel's monthly plan is hugely popular, generating $80 million yearly for the Swedish company, even if most folks here in the United States have never heard of Rebtel.

The basic gist - unlimited calls, anywhere in the world, for $10 monthly. But why would consumers want to pay, when they get free calls from Skype, Whatsapp Messenger, FaceTime, Google Hangouts and so many other apps?

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