Question

Un dialogo con could you, would you?

Answer 1

-Could you call back later?
-Would you call back later?

in the first case:  
Are you able to call me back later
in the second case: Are you willing to call me back later

Answer 2

Respuesta:

-Could you call back later?

-Would you call back later?

in the first case:  

Are you able to call me back later

in the second case: Are you willing to call me back later

Explicación: