Toll Service Desk: An Improved Concept of Telephone Toll Traffic Control

A new toll service desk (TSD) system has been developed and successfully introduced, which greatly reduces the human involvement in the processing of operator-assisted telephone toll calls. This combination of an advanced toll recording system, a modem pushbutton-operated console, and a common control crossbar switching system has automated a major portion of the traffic room functions. The design concept and features of the TSD system are discussed.