KR880014779A - Long distance call prevention method using multi-frequency transmission circuit - Google Patents

Long distance call prevention method using multi-frequency transmission circuit Download PDF

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Publication number
KR880014779A
KR880014779A KR870005135A KR870005135A KR880014779A KR 880014779 A KR880014779 A KR 880014779A KR 870005135 A KR870005135 A KR 870005135A KR 870005135 A KR870005135 A KR 870005135A KR 880014779 A KR880014779 A KR 880014779A
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KR
South Korea
Prior art keywords
call
dialing
predetermined
long distance
transmission circuit
Prior art date
Application number
KR870005135A
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Korean (ko)
Inventor
김선기
Original Assignee
강진구
삼성반도체통신 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.)
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Publication date
Application filed by 강진구, 삼성반도체통신 주식회사 filed Critical 강진구
Priority to KR870005135A priority Critical patent/KR880014779A/en
Publication of KR880014779A publication Critical patent/KR880014779A/en

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Abstract

내용 없음No content

Description

다중 주파수 송출회로를 이용한 장거리 통화방지방법Long distance call prevention method using multi-frequency transmission circuit

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

제3도는 본 발명에 따른 스위칭 구성도, 제4도는 본 발명에 따른 장거리 통화방지방법 흐름도.Figure 3 is a switching configuration according to the present invention, Figure 4 is a long distance call prevention method flow chart according to the present invention.

Claims (1)

장거리 통화방지방법에 있어서, 소정 MFC 가입자가 "훅크 오프"하면 발신음을 공급하고 상기 가입자가 소정 국선 억세스 번호를 다이얼링시 빈 국선을 찾아 상기 다이얼링 숫자를 다중 주파수 검출회로를 통하여 읽히도록 하는 제1과정과, 상기 제1과정에서 얽혀진 다이얼링 숫자가 장거리 지역 코드이면 통화로가 연결되지 못하도록 함과 동시에 화중음을 송출하고 장거리 지역코드가 아니면 통화로가 연결되지 못하도록 함과 동시에 화중음을 송출하고 장거리 지역 코드가 아니면 다음 과저을 계속 수행되도록 제어하는 제2과정과, 상기 제2과정후 국선 발신음 수신시까지 소정 지연시간이 경과되었는가 체크한 결과에 따라서 상기 지연시간이 경과하였을 경우에는 다음 과정을 계속 수행하도록 제어하는 제3과정과, 상기 제3과정 후 상기 다중 주파수 검출회로에서 읽은 다이얼링 숫자를 다이얼링이 모두 끝날때까지 계속 다중 주파수 송출회로를 통하여 송출하고 다이얼링이 모두 끝나면 다음 과정으로 수행하게 하는 제4과정과, 상기 제4과정후 소정 국선 가입자가 "훅크 오프"할 때까지 계속 링백톤과 벨을 울리도록 제어함과 동시에 "훅크 오프"하면 통화로가 연결되어 정상 통화가 이루어지도록 하는 제5과정으로 구성함을 특징으로 하는 다중 주파수 송출회로를 이용한 장거리 통화방지방법.A long distance call prevention method, comprising: a first process of supplying a dial tone when a predetermined MFC subscriber is "hooked off" and finding the empty trunk line when the subscriber dials a predetermined CO line access number to read the dialing number through a multi-frequency detection circuit; If the dialing number entangled in the first step is a long distance area code, the call path is not connected and simultaneously a call sound is transmitted. If the delay time has elapsed according to the second step of controlling the next over low if the area code is not carried out and whether or not the predetermined delay time has elapsed until the CO line transmission tone is received after the second step, the next step is continued. A third process of controlling to control the multi-frequency after the third process The fourth step of sending out the dialing number read from the exit circuit through the multi-frequency transmission circuit until the dialing is completed, and performing the next process after the dialing is completed, and after the fourth step, the predetermined trunk line subscriber is “hooked off”. Long-distance call prevention by using a multi-frequency transmission circuit, characterized in that it consists of a fifth process of controlling the ringback tone and the bell to continue ringing and at the same time "hooking off" when the call path is connected to make a normal call. Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR870005135A 1987-05-23 1987-05-23 Long distance call prevention method using multi-frequency transmission circuit KR880014779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR870005135A KR880014779A (en) 1987-05-23 1987-05-23 Long distance call prevention method using multi-frequency transmission circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR870005135A KR880014779A (en) 1987-05-23 1987-05-23 Long distance call prevention method using multi-frequency transmission circuit

Publications (1)

Publication Number Publication Date
KR880014779A true KR880014779A (en) 1988-12-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR870005135A KR880014779A (en) 1987-05-23 1987-05-23 Long distance call prevention method using multi-frequency transmission circuit

Country Status (1)

Country Link
KR (1) KR880014779A (en)

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