AT&T drops more than other providers
Gizmodo reports that while AT&T has actually improved performance around dropped calls lately, a survey from ChangeWave Research reports that 4.5% of calls placed on the AT&T mobile network are dropped which is three times as many as Verizon users.
AT&T and T-Mobile each share only a 23% customer approval rating which provides a good correlation with dropped calls.
Source: Gizmodo