2011年真题News Item Four-英语听力

[00:00.39]AT&T plans to spend $18 billion in 2010 upgrading its wireless networks to handle the increasing amount of new traffic. [00:09.29]This is roughly $2 billion more than the company had invested in the previous year. [00:13.61]Specifically, AT&T will add 2,000 new cell sites and upgrade existing cell sites with three times more fiber links than it had in 2009. [00:24.59]This will increase capacity to connect the cell towers to AT&T's main network. [00:30.03]AT&T, which is the only wireless operator in the U.S. selling the iPhone, has been the target of much criticism over this past year, [00:39.04]as many iPhone subscribers, particularly in densely populated urban areas, [00:44.42]have complained about dropped calls, slow Internet access, and poor service. [00:50.01]Some critics claim the company has not been spending enough on network upgrades to keep up with growing demand. [00:56.87]AT&T has acknowledged that it has faced some difficulties, particularly in big cities. [01:02.35]But the company is "closing the gap."