Thousands of older mobile phones have stopped working after Australia's 3G network shut down at midnight. And while cities across the country are already embracing faster 4G and 5G, it's regional areas that could feel the biggest impact. Many rural communities still rely on 3G for phone coverage and essential services. Like farm equipment, medical devices, and emergency alarms. So what do you need to know?

For more, tech expert Val Quinn joins. 

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