Some medical device equipment, as well as products such as personal medical alarms could be affected as mobile network operators prepare to switch off their 3G networks.
3G has been in use since the early 2000s but is being decommissioned in place of the advanced 4G and 5G networks.
Telstra and Optus will switch off their third-generation mobile networks at the end of August, while TPG Telecom/Vodafone already did so at the start of 2024.
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