The vacation blackout continues through to Sunday 22 September, TmoNews reports, ensuring all T-Mobile employees are available to assist the usual crowd of iPhone customers.
While the report clarifies the blackout is only a rumour, and should be taken as such, it would fit with the current 10 September launch speculation.
If Apple uses a similar timeline to its 2012 iPhone 5 release, the Cupertino-based company will unveil its devices midweek – often a Tuesday or Wednesday – and release the devices on the Friday of the next week.
The latest rumours would suggest the iPhone 5S will provide a camera upgrade, introduce a gold colour option, boost security with a fingerprint scanner and potentially increase the processing power with a new ‘A7′ chip.
If this is the correct date, it would be likely the next-generation iPhones and iOS 7 would be available in Australia on the same date.