KR940003407A - Detection of Trunk Call Revocation Abandonment in Private Switching System - Google Patents

Detection of Trunk Call Revocation Abandonment in Private Switching System Download PDF

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Publication number
KR940003407A
KR940003407A KR1019920012212A KR920012212A KR940003407A KR 940003407 A KR940003407 A KR 940003407A KR 1019920012212 A KR1019920012212 A KR 1019920012212A KR 920012212 A KR920012212 A KR 920012212A KR 940003407 A KR940003407 A KR 940003407A
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KR
South Korea
Prior art keywords
trunk line
abandonment
call
detection
incoming call
Prior art date
Application number
KR1019920012212A
Other languages
Korean (ko)
Inventor
류상신
Original Assignee
정용문
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019920012212A priority Critical patent/KR940003407A/en
Publication of KR940003407A publication Critical patent/KR940003407A/en

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Abstract

사설 교환기에서의 국선 인입호 포기 검출 방법은 상기 사설 교환기의 해당 내선 전화기가 국선측에 응답하였을 경우에 국선과의 통화로를 형성시킨 후 국선 인입호에 대한 포기 유무를 감지하기 위해 상기 국선측으로 부터 인가되는 톤 신호를 검출하는 것을 특징으로 함에 의해 국선 인입호의 포기 검출이 빠르게 검출되어진다.The method for detecting a trunk line call abandonment call in a private exchange exchanges a call line from the trunk line side to detect the abandonment of the trunk line incoming call when a corresponding extension telephone of the private exchange exchanges a call line side. By detecting the applied tone signal, the abandonment detection of the trunk line incoming call can be detected quickly.

Description

사설 교환기에서의 국선 인입호 포기 검출 방법Detection of Trunk Call Revocation Abandonment in Private Switching System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 일반적인 사설 교환기의 블럭도,1 is a block diagram of a general private exchange,

제2도는 제1도중 국선회로(10)의 구체 블럭도,2 is a detailed block diagram of the trunk line circuit 10 of FIG.

제4도는 본 발명에 따른 국선 인입호 포기에 대한 검출 제어 흐름도.Figure 4 is a detection control flow diagram for the trunk line call abandoned in accordance with the present invention.

Claims (3)

사설 교환기에서의 국선 인입호 포기 검출 방법에 있어서, 상기 사설 교환기의 해당 내선 전화기가 국선측에 응답하였을 경우에 국선과의 통화로를 형성시킨 후 국선 인입호에 대한 포기 유무를 감지하기 위해 상기 국선측으로 부터 인가되는 톤 신호를 검출하는 것을 특징으로 하는 사설 교환기에서의 국선 인입호 포기 검출 방법.A method for detecting a trunk line incoming call abandonment in a private exchange, wherein the corresponding telephone line of the private branch exchange forms a call path with a trunk line when the telephone extension of the private branch exchange responds to a trunk line, and then detects whether or not abandonment of the trunk line incoming call is made. A trunk line incoming call abandonment detection method in a private exchange, characterized by detecting a tone signal applied from a side. 제1항에 있어서, 상기 톤 신호가 상기 국선측으로 부터 인가되는 다이얼 톤임을 특징으로 하는 사설 교환기에서의 국선 인입호 포기 검출 방법.The method of claim 1, wherein the tone signal is a dial tone applied from the trunk line side. 제2항에 있어서, 상기 다이얼 톤이 검출될 경우 상기 해당내선에 화중음을 송출하고 국선회로내의 팁/링 연결용 릴레이를 오프시키는 단계를 더 구비함을 특징으로 하는 방법.3. The method according to claim 2, further comprising the step of sending a ring tone to the corresponding station when the dial tone is detected and turning off the tip / ring connection relay in the trunk line circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920012212A 1992-07-09 1992-07-09 Detection of Trunk Call Revocation Abandonment in Private Switching System KR940003407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920012212A KR940003407A (en) 1992-07-09 1992-07-09 Detection of Trunk Call Revocation Abandonment in Private Switching System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920012212A KR940003407A (en) 1992-07-09 1992-07-09 Detection of Trunk Call Revocation Abandonment in Private Switching System

Publications (1)

Publication Number Publication Date
KR940003407A true KR940003407A (en) 1994-02-21

Family

ID=67147284

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920012212A KR940003407A (en) 1992-07-09 1992-07-09 Detection of Trunk Call Revocation Abandonment in Private Switching System

Country Status (1)

Country Link
KR (1) KR940003407A (en)

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