Apple Confirms 000 Call Failure in Australia, Advises iPhone 12 Users to Update to iOS 26.2

The issue arose when calls did not transfer to an alternate network in regional areas where a primary network was unavailable.

Overview

Apple disclosed the problem in a support document published Friday and said recurrence is unlikely but possible for older handsets.
For iPhone 12, the iOS 26.2 software update provides support for this scenario, while iPhone XS, iPhone XR, iPhone 11, and iPhone 13 or newer are not affected.
The failure affected some Australians dialing 000 when their main mobile network was down even though another network was available.
Mobile operators are implementing mitigations to reduce the chance of future occurrences.
Media reports describe similar incidents on some Samsung phones, though Apple has not confirmed any link to other manufacturers.