Pew survey : Phone problems plague the nearly nine of 10 U.S. adults who have a cell phone . It 'll be interesting to see whether the rollout of faster 4G wireless carrier networks will ease the problems Pew has noted . The poll also found that only about one in five Americans has ever used their cellphone to make or receive an emergency call -- and fewer than half use it for more than two minutes at any given Nearly eight in 10 smartphone users experience slow download speeds . Smartphone owners are more likely than owners of feature phones to experience problems .
Pew survey : Phone problems plague the nearly nine of 10 U.S. adults who have a cell phone . The poll also found that only about one in five Americans has ever used their cellphone to make or receive an emergency call -- and fewer than half use it for more than two minutes at any given Nearly eight in 10 smartphone users experience slow download speeds . Smartphone owners are more likely than owners of feature phones to experience problems .