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Supposedly they had deals with the carriers https://stackoverflow.com/questions/3668372/how-was-twitter-able-to-send-receive-millions-of-sms-messages-for-free
by jdofaz 6y ago
Supposedly they had deals with the carriers
https://stackoverflow.com/questions/3668372/how-was-twitter-able-to-send-receive-millions-of-sms-messages-for-free https://stackoverflow.com/questions/3668372/how-was-twitter-...