Other crossword clues for answer "DIALTONE"DIALTONELandline featureIndication of service availabilityIt's okay to call now signalReceiver soundSignal to place a callCaller's needCell phone's lackReady signal of a sortDead phone's lackSign of a working phoneReady signal of a kindSound on a landline phoneWhat a caller once needed to hearWhat's not heard from a cell phoneTelephone signal.Sound of the open line.Modern sound effect.Phone soundTelephone humCall FranchotIt may follow a clickSound after a hang-upLandline soundFeature of a landline, but not a cellphoneSound around a cradleOpen line indicatorIt's a mix of 350 Hz and 440 Hz in the United StatesSound from a receiverCellphone lack