I wanted to create a service that needs send SMS to people (Brazil). I know that Google Agenda, for example, has integration with some cellphone companies, so they provide these APIs to Google. But how could I, a no one with no BigCo behind me, do something like this?
Surprisingly, this allows sending SMS to all operators in Brazil, and just tested on mine. I wonder, how they did it? Did they have to contact each operator and make a deal, or I'm missing something?
