Every smartphone comes with a slate of built-in ringtones and alert sounds. But after a while, they can get annoying and confusing. Was that your phone ringing or the guy behind you in line at the ...

Select an option from Settings > Sounds & Haptics > Ringtone to set a new default ringtone. You can use a third-party app to create a custom ringtone. Select it as the default in the Ringtone settings ...