Oliver Peterson: Australian correspondent on Australia shutting off their 3G network and cutting off over a million older phones - Heather du Plessis-Allan Drive

Over in Australia, there's growing concern users of older phones could be barred from making emergency calls in the coming months.

Australia's 3G network will be shut off after 20 years, in order to free up room for more 4G and 5G technologies.

Australian correspondent Oliver Peterson says there are still areas in the country that can't connect to 4G or 5G yet- and this puts people at risk.

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