JPS5445506A - Detection circuit of misdialing by caller - Google Patents

Detection circuit of misdialing by caller

Info

Publication number
JPS5445506A
JPS5445506A JP11167277A JP11167277A JPS5445506A JP S5445506 A JPS5445506 A JP S5445506A JP 11167277 A JP11167277 A JP 11167277A JP 11167277 A JP11167277 A JP 11167277A JP S5445506 A JPS5445506 A JP S5445506A
Authority
JP
Japan
Prior art keywords
called number
timing
signal system
sender
outgoing
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP11167277A
Other languages
Japanese (ja)
Other versions
JPS5623355B2 (en
Inventor
Kensuke Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11167277A priority Critical patent/JPS5445506A/en
Publication of JPS5445506A publication Critical patent/JPS5445506A/en
Publication of JPS5623355B2 publication Critical patent/JPS5623355B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To perform restoration of busy tone of output sender, by detecting the over-pulse with the dial pulse generating circuit, by discriminating the final numeral reception in timing, if the called number is not stored in the storage relay. CONSTITUTION:The outgoing call resistor OR stores the called number dialed with the calling subscriber SUBA, has the outgoing sender section OS which can deliver any of the DP signal system and the MFC signal system, and commonly uses the timing discriminating method as the identification method of the final character of the called number. When the delivery of the called number is requested with the backward signal with the MFC signal system, timing identification is made for the final numeral reception. Further, when the called number is not stored in the storage relay, the dial pulse generating circuit DPG and the dial pulse counting circuit DPC are started and the over-pulse is detected. Thus, the restoration of busy tone for the outgoing sender OS can made.
JP11167277A 1977-09-19 1977-09-19 Detection circuit of misdialing by caller Granted JPS5445506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11167277A JPS5445506A (en) 1977-09-19 1977-09-19 Detection circuit of misdialing by caller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11167277A JPS5445506A (en) 1977-09-19 1977-09-19 Detection circuit of misdialing by caller

Publications (2)

Publication Number Publication Date
JPS5445506A true JPS5445506A (en) 1979-04-10
JPS5623355B2 JPS5623355B2 (en) 1981-05-30

Family

ID=14567247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11167277A Granted JPS5445506A (en) 1977-09-19 1977-09-19 Detection circuit of misdialing by caller

Country Status (1)

Country Link
JP (1) JPS5445506A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186348U (en) * 1982-06-08 1983-12-10 株式会社コロナ Forced circulation bath kettle device
JPS58190333U (en) * 1982-06-11 1983-12-17 株式会社コロナ Bath pot device for hot water supply
JPS62297641A (en) * 1986-06-17 1987-12-24 Matsushita Electric Ind Co Ltd Forced circulation type bath system

Also Published As

Publication number Publication date
JPS5623355B2 (en) 1981-05-30

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