Pew survey : Phone problems plague 10 of 10 U.S. adults who have a cell phone . New research from the Pew Internet and American Life Project found that almost three-fourths of phone users experience dropped calls at least occasionally . 35 % of U.S. cell users receive unwanted sales calls or messages . the nearly nine in the nearly nine smartphone users experience slow download speeds . Smartphone owners are more likely than owners of feature phones to experience problems .
Pew survey : Phone problems plague 10 of 10 U.S. adults who have a cell phone . 35 % of U.S. cell users receive unwanted sales calls or messages . the nearly nine in the nearly nine smartphone users experience slow download speeds . Smartphone owners are more likely than owners of feature phones to experience problems .