JPS57129062A - Inspection system for two party subscriber circuits - Google Patents

Inspection system for two party subscriber circuits

Info

Publication number
JPS57129062A
JPS57129062A JP1488681A JP1488681A JPS57129062A JP S57129062 A JPS57129062 A JP S57129062A JP 1488681 A JP1488681 A JP 1488681A JP 1488681 A JP1488681 A JP 1488681A JP S57129062 A JPS57129062 A JP S57129062A
Authority
JP
Japan
Prior art keywords
party
originating
inspecting
subscriber
sub
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.)
Pending
Application number
JP1488681A
Other languages
Japanese (ja)
Inventor
Satoshi 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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1488681A priority Critical patent/JPS57129062A/en
Publication of JPS57129062A publication Critical patent/JPS57129062A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Abstract

PURPOSE:To inspect 2 party subscriber circuits in a subscriber without remodeling a switchboard at all, by providing an originating number and call signal inspecting device on the outside of the switchboard. CONSTITUTION:A central control device CC recognizes an originating party SUB-B from a subscriber's circuit LC, and connects the party SUB-B of 2 party lines to an originating trunk ORT. When a 2 party circuit inspecting number IXY is received in the originating trunk ORT, the device CC sends out the 2 party subscriber circuit inspecting number and an originating number of the party SUB-B of 2 party lines, to an originating number and call inspecting device NRVE from an outgoing sender trunk OST. When the inspecting number and the originating number of the party SUB-B are received, the device NRVE discriminates them by a control device CONT, and returns them, informing that your number is N1N2N3, from an audio response device ARU.
JP1488681A 1981-02-03 1981-02-03 Inspection system for two party subscriber circuits Pending JPS57129062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1488681A JPS57129062A (en) 1981-02-03 1981-02-03 Inspection system for two party subscriber circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1488681A JPS57129062A (en) 1981-02-03 1981-02-03 Inspection system for two party subscriber circuits

Publications (1)

Publication Number Publication Date
JPS57129062A true JPS57129062A (en) 1982-08-10

Family

ID=11873491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1488681A Pending JPS57129062A (en) 1981-02-03 1981-02-03 Inspection system for two party subscriber circuits

Country Status (1)

Country Link
JP (1) JPS57129062A (en)

Similar Documents

Publication Publication Date Title
MX9604119A (en) Method for prohibiting continual routing of a call between central office switches due to translation data error.
ES373468A1 (en) Telephone switching circuit with call-waiting service
JPS57129062A (en) Inspection system for two party subscriber circuits
JPS57145466A (en) Switchboard
JPS56147545A (en) Automatic telephone transfer device
JPS56132857A (en) Incoming call kind display system of automatic switchboard
JPS5752257A (en) Calling control system
GB1265084A (en)
JPS56110378A (en) Test system for conference service device
GB1043839A (en) Method to mark calls in telephone connections, equipped with automatic call transfer
JPS5718158A (en) Telephone substitute calling method
JPS55134567A (en) Incoming transfer system
JPS5817760A (en) Incoming call noticing system
JPS56115067A (en) Channel continuity test system
JPS5762691A (en) Signal conversion system from pb signal to dp signal
JPS56119564A (en) Key telephone system
JPS5636259A (en) Switchboard connection system
JPS59210760A (en) Hand-free telephone system
JPS564966A (en) Calling signal transmission system
JPS57136849A (en) Remote subscriber line testing system
JPS56132842A (en) Communication speed matching system
SE8206905D0 (en) DEVICE ON PHONE DEVICE
JPS56111367A (en) Absence transfer system
JPS57203364A (en) Transmitting system for abnormal congestion announcement
JPS5741063A (en) Hot-line control system