I would like a world wide research for SMS Providers that works with SMPP protocol and can send SMS to Brazil. So far, I found http://smsafricang.com/ and http://bulksms.2way.co.za/, but they wasnt clear about the taxes to send to Brazil.
In other words, I really need a sms gateway to send bulk sms, cheapest and reliable, that I can integrate with my software (provides API to integrate).
It must cost lower then USD 0,02.
You need to get in touch with as many bulk sms companies as you can that offers SMS to Brazil and has SMPP services to get their prices. I am quoting for 5.000 and 50.000 SMS/month. Be aware that some companies charges in credits and each credit has low cost, but to send to Brazil takes each time a few credits.