See Also: callback(dictionary)

callback (iou)



callback noun. M20.
[from call back s.v. CALL verb.]
An instance of returning to a customer to repair a previously sold product, esp. when this is covered by a guarantee. M20.
A telephone call made to return one that someone has received. M20.
An invitation to return for a second audition or interview. Chiefly N. Amer. M20.
A security feature used by some computer systems accessed by telephone, in which a user must log on from a previously registered phone number, to which the system then places a return call. L20.