ring back
US /rɪŋ bæk/
UK /rɪŋ bæk/

1.
devolver la llamada
to call someone again, or to return a phone call to someone who called you earlier
:
•
I'll ring back in five minutes.
Te devuelvo la llamada en cinco minutos.
•
Could you ask him to ring me back?
¿Podrías pedirle que me devuelva la llamada?