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This communication describes a "Dialed Connection" teleprinter switching system designed to operate with machines not equipped with a stunt box (device used to provide control functions on late model teleprinters). The answer back code for old model teleprinters was accomplished by generating each code at the switching center. The term "old model teleprinter" refers to those machines which will not accommodate a conventional answer back mechanism. The system enables small private networks to automate while retaining existing station equipment.