KR940003407A - Detection of Trunk Call Revocation Abandonment in Private Switching System - Google Patents
Detection of Trunk Call Revocation Abandonment in Private Switching System Download PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- trunk line
- abandonment
- call
- detection
- incoming call
- Prior art date
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- Sub-Exchange Stations And Push- Button Telephones (AREA)
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
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)
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) |
-
1992
- 1992-07-09 KR KR1019920012212A patent/KR940003407A/en not_active Application Discontinuation
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Legal Events
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WITN | Withdrawal due to no request for examination |