公开(公告)号：JPH0758879A

公开(公告)日：1995-03-03

申请号：JP27467893

申请日：1993-11-02

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： GO JIYUNSHIYAKU

IPC: H04M11/00 ,  G06F13/00 ,  H04L29/02 ,  H04L29/06 ,  H04L29/08 ,  H04M11/06

Abstract: PURPOSE: To enable simultaneous communication with a main controller and many terminals by matching the main controller to a public telephone communication network by providing a control means which repeats digital command and data by the package unit in response to periodical calls of the main controller between the main controller and a repetition control means. CONSTITUTION: A high-level data interface control(HDLC) circuit 16 transmits instructions and data flowing in from a computer system 14 by the package unit to a repetition control section 22 and, in addition, many command and data flowing in from a control section 22 to a system 14 side after packaging. When a transmission request command is inputted to the control section 22 from the system 14 through the circuit 16, the section 22 supplies the telephone number of a terminal to a DTMF device 28 by controlling a MODEM device 30 to form the loop of a public telephone communication network 21.