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At the time of the rise of Viber and then Whatsapp, for people in Africa or communicating with Africa the messaging substitution wasn't an important question at
by liotier 4y ago
At the time of the rise of Viber and then Whatsapp, for people in Africa or communicating with Africa the messaging substitution wasn't an important question at all: we were burning so much money with international calls (and SMS) that any other tradeoff was a rounding error.