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an act of calling back.
a summoning of workers back to work after a layoff.
a summoning of an employee back to work after working hours, as for emergency business.
a request to a performer who has auditioned for a role, booking, or the like to return for another audition.
recall (def 12).
a return telephone call.
of or relating to such a call:
Please leave a callback number.
Contemporary Examples

Spartacus Hero Liam McIntyre’s Unlikely Rise into the Role Adam Auriemma January 26, 2012
‘Mad Men’ Returns: A Recap of Season Five Jace Lacob April 4, 2013
Finally! ‘Saturday Night Live’ Hires Sasheer Zamata, First Black Female Cast Member in 5 Years Kevin Fallon January 5, 2014
His First Day Out Of Jail After 40 Years: Adjusting To Life Outside Justin Rohrlich January 2, 2015
‘Beasts of the Southern Wild’: One of the Year’s Best Films Marlow Stern June 17, 2012
Andy Samberg’s ‘SNL’ Finale Was Wonderfully Weird Kevin Fallon May 17, 2014

1. A scheme used in event-driven programs where the program registers a subroutine (a “callback handler”) to handle a certain event. The program does not call the handler directly but when the event occurs, the run-time system calls the handler, usually passing it arguments to describe the event.
2. A user authentication scheme used by some computers running dial-up services. The user dials in to the computer and gives his user name and password. The computer then hangs up the connection and uses an auto-dial modem to call back to the user’s registered telephone number. Thus, if an unauthorised person discovers a user’s password, the callback will go, not to him, but to the owner of that login who will then know that his account is under attack.
However, some PABXs can be fooled into thinking that the caller has hung up by sending them a dial tone. When the computer tries to call out on the same line it is not actually dialing through to the authorised user but is still connected to the original caller.
3. cost control callback.


Read Also:

  • Call-board

    a bulletin board, as in a theater, on which notices are posted announcing rehearsals, changes in the cast, etc. Historical Examples The Art of Stage Dancing Ned Wayburn The Art of Stage Dancing Ned Wayburn The Art of Stage Dancing Ned Wayburn

  • Call-box

    an outdoor telephone or signal box for calling the police or fire department. British. a public telephone booth. a post-office box for mail that can be picked up only by a renter in person. noun a soundproof enclosure for a public telephone Also called telephone box, telephone kiosk

  • Callboy

    a boy or man who summons actors, as from their dressing rooms, shortly before they are due to go on stage. a bellhop. Also, call boy. a male prostitute who arranges appointments with clients by telephone. Also, call-boy, call boy. Railroads Slang. a railroad employee responsible for ensuring that members of a train crew are […]

  • Call-center

    noun Contemporary Examples Grim Sleeper Serial Killer: More Victims of L.A. Monster Christine Pelisek December 14, 2010 The GOP Couldn’t Kill Obamacare, but Hispanics Could Patricia Murphy December 8, 2013 How a ‘Real Housewife’ Survives Prison: ‘I Don’t See [Teresa Giudice] Having a Cakewalk Here’ Michael Howard January 5, 2015 Why Call Center Jobs Are […]

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