📒 a phone call that you make to somebody who has just called you
📒 a phone service that you can use if you call somebody and their phone is being used, so that your phone will ring when the line is free; a call made using this service
📒 a process by which the user of a computer or phone system proves their identity by contacting a computer, which then contacts them
📒 an occasion when you are asked to return somewhere, for example for a second interview when you are trying to get a job