Australian telcos Telstra and Optus remain on course to finalize their 3G shutdown next week (October 28). The two carriers both delayed their 3G switch-off plans this year, amid concerns that thousands of customers could suddenly be switched off.

But it has largely been replaced by more advanced technology like 4G and 5G and has been earmarked for full-scale shutdown. Vodafone has already switched off its 3G network in Australia, however, Optus and Telstra have extended their closure plan to October 28.

Telstra and Optus will finally scrap their 3G networks on October 28, as the devices which need upgrading are revealed and business' are warned to check their systems too.