“We have been researching the issue and have found there is a global issue with the iPhone, in particular the iOS 6 and iOS 7 operating systems.”
Telecom said the internet is full of articles and blogs written by iPhone users who, despite having turned off data and apps, are still using data over the mobile network.
“The general issue we have found so far is that the iPhone maintains a dual connection with 3G mobile data whilst also using the WiFi network.”
Background applications such as ‘cloud’ services used for backing up things like files and iTunes music are continuing to access data even after it has been turned off.
“Users will be liable for charges incurred by their phones so Telecom Cook Islands would like to warn all users, particularly iPhone users, to be extremely cautious with their phone’s access to data and to review the internet forums on the many ways to turn off background applications and services in order to manage their data use.”