What is less publicised is the continued importance of text messaging within this booming growth of non-voice traffic. The ITU recently illustrated this by claiming text messages sent by the 5.3 billion mobile users was generating $14,000 (around €9,700) per second for operators around the world, assuming an average of $0.07 per SMS.

Also of note are the findings from a recent YouGov study that almost a third of smartphone users believe that texting is just as important as making and receiving calls.

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