AT&T is once again trailing other major US carriers in its quality of service rankings, Consumer Reports has found in its latest survey (live soon; subscription required). Readers scored the network just 66 points for its performance across 19 cities, just below the declining Sprint's 67 and significantly lower than T-Mobile's 70 or Verizon's leading 75 points. Most of the criticism was leveled against AT&T's voice service, which has been widely described as unreliable as the sheer load of iPhone customers has oversaturated the 3G network.
