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.

Telstra and Optus will shut down their 3G mobile networks on Monday, October 28, in a full transition to the 4G and 5G mobile networks.

Australia's 3G networks will be shut down next week leaving devices that rely on the 3G network unable to make calls including emergency voice calls to Triple Zero.

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.