Definition of ringback in English:

ringback

noun

  • A sound made by a mobile phone that is heard by a person who is calling that phone while waiting for the call to be connected.

    • ‘Now comes ringbacks, which allow you to change the way your phone sounds in the ear of the person calling you.’
    • ‘It looks like almost every caller tried a few times, and hung up in confusion when they first heard the ringback tone.’

Pronunciation

ringback

/ˈriNGbak/