Survey: AT&T leads in dropped calls

changewave researchAT&T Mobility (NYSE: T) can't catch a break. The carrier, which has been busy upgrading its networks, is still getting dinged for apparently having a higher frequency of dropped calls than its rivals. According to a new survey from ChangeWave Research, which asked 4,040 smartphone users in March how many dropped calls they had experienced in the past three months, AT&T customers reported 4.5 percent of their calls were dropped. That's three times higher than Verizon Wireless (NYSE: VZ) customers, who reported that only 1.5 percent of their calls were dropped. Sprint Nextel (NASDAQ: S) customers reported 2.4 percent of calls were dropped, and T-Mobile USA customers reported 2.8 percent of their calls were dropped. Article

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