AT&T is going on the offensive about the performance of the iPhone on its network, after rumours that its exclusive distribution deal in the US is coming to an end.
The company said that it is working on its network in order to improve reliability and wireless broadband speeds. Users in the US have long complained about the service, and rival carriers have ridiculed the company's poor 3G coverage.
However, the blame may not lie entirely with AT&T. A company official quoted in The Wall Street Journal said that AT&T had been working with Apple to adjust the iPhone's behaviour in an effort to reduce the load on the network.
The renewed efforts follow rumours that Apple will soon end its exclusive deal with AT&T by offering a version of the iPhone for use with rival Verizon's CDMA network.
The deal with AT&T is Apple's longest running iPhone carrier partnership by more than a year, and dates back to before the device was debuted at the 2007 Macworld Expo.
Apple chief executive Steve Jobs said at the launch that the iPhone would be locked into the network of Cingular, which was acquired by AT&T soon after.
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