What is CS (Circuit Switched (or Cyclic Shift))?

Circuit switching is utilized to fabricate a communications network in which two network nodes set up a devoted communications channel (circuit) through the network before the nodes may convey. It is utilized for normal telephone calls. It permits communications equipment and circuits to be divided between clients.
At the point when a call is set up from one phone to another, switches inside the telephone exchanges make a wire circuit between the two phones, for as long as the call lasts. The bit delay is steady during an association in circuit switching.