5G is changing the main source of revenue for communications service providers (CSPs). With 4G, most revenue came from cellphone subscriptions. But connected devices—many tied to Industry 4.0 applications like remote patient monitoring and synchronized production-line robots—are expected to drive 95% of new revenues in the 5G era (Ericsson, 2017). This will ramp up quickly; GSMA predicts there will be five times more connected devices than humans by 2025 (2019 stat).

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