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Ask HN: International Calling
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2 points
by localuser
4709 days ago
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Say if I wanted to make an international phone calling app [1], where would one begin? Who do I contact (ATT, VZW)? How big are the margins for companies in the phone/sms space, like Rebtel?
I'm looking for an API like Twilio, but their rates are ridiculous. |
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