The term 'DIAL SOUND' can be broken down into two crossword solutions: 'DIAL' and 'TONE'. 'DIAL' is a verb meaning to turn a knob or wheel in order to adjust the settings of a device, such as a radio or telephone. 'TONE' is a noun referring to the quality of sound produced by a particular instrument or voice. It is also used to describe the overall character or attitude of a piece of writing or speech. Together, these two words can be used to describe the sound produced when a person dials a telephone number.