* This is a translation of the Telstra announcement.
https://www.telstra.com.au/exchange/iphone-calling-issue--what-you-need-to-know
We are currently investigating an issue where some older Apple devices are unable to connect to the network, including emergency calls to 000. We are working with Apple to resolve this issue as a priority and will share any updates as they become available. Customers using these devices are advised to postpone their device's software updates until the issue is resolved.
Devices that may be affected:
- iPhone 8 updated to iOS 16.7.13
- iPhone 8 Plus updated to iOS 16.7.13
- iPhone X updated to iOS 16.7.13
Update: January 28, 2026 at 6:00 PM (Australian Eastern Standard Time)
Apple has temporarily stopped signing the software updates released earlier this week for some older iPhone models as part of its investigation into the issue. These updates include iOS 18.7.4, iOS 16.7.13, iOS 15.8.6, and iOS 12.5.8.
* Here is a link to the relevant MacRumors article.
https://www.macrumors.com/2026/01/28/apple-stops-signing-newly-released-ios-updates/
https://x.com/MacRumors/status/2016487080826982810
