Ringback

Definitions

1. The sound transmitted back to a caller to indicate that the telephone they are calling is ringing.
   uncountable
2. A telephone feature allowing a person to receive an automatic call back when a busy line becomes free.
   uncountable

Equivalents

Examples

“'But you've been engaged an awfully long time: I had to use⟳ ringback in the end⟳ and that's expensive, but this is important so never mind⟳.'”

CEFR level