AT&T has been the sole U.S. carrier since the iPhone's 2007 debut and some iPhone users have complained about the quality of the AT&T network.
Other people have held off buying an iPhone because they use a wireless carrier other than AT&T.
AT&T has been the sole U.S. carrier since the iPhone's 2007 debut and some iPhone users have complained about the quality of the AT&T network.
Other people have held off buying an iPhone because they use a wireless carrier other than AT&T.