JPS5397708A - Caller's number discrimination system - Google Patents

Caller's number discrimination system

Info

Publication number
JPS5397708A
JPS5397708A JP1274277A JP1274277A JPS5397708A JP S5397708 A JPS5397708 A JP S5397708A JP 1274277 A JP1274277 A JP 1274277A JP 1274277 A JP1274277 A JP 1274277A JP S5397708 A JPS5397708 A JP S5397708A
Authority
JP
Japan
Prior art keywords
caller
discrimination system
number discrimination
sutomatic
switchboard
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
JP1274277A
Other languages
Japanese (ja)
Inventor
Sadao Osabe
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 JP1274277A priority Critical patent/JPS5397708A/en
Publication of JPS5397708A publication Critical patent/JPS5397708A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)

Abstract

PURPOSE:To ensure an sutomatic discrimination of the subscriber telephone number at the transmitting side, by adding a capacitor to the switchboard.
JP1274277A 1977-02-07 1977-02-07 Caller's number discrimination system Pending JPS5397708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1274277A JPS5397708A (en) 1977-02-07 1977-02-07 Caller's number discrimination system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1274277A JPS5397708A (en) 1977-02-07 1977-02-07 Caller's number discrimination system

Publications (1)

Publication Number Publication Date
JPS5397708A true JPS5397708A (en) 1978-08-26

Family

ID=11813867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1274277A Pending JPS5397708A (en) 1977-02-07 1977-02-07 Caller's number discrimination system

Country Status (1)

Country Link
JP (1) JPS5397708A (en)

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