JPS56156056A - Discriminating system for incoming call - Google Patents

Discriminating system for incoming call

Info

Publication number
JPS56156056A
JPS56156056A JP5973980A JP5973980A JPS56156056A JP S56156056 A JPS56156056 A JP S56156056A JP 5973980 A JP5973980 A JP 5973980A JP 5973980 A JP5973980 A JP 5973980A JP S56156056 A JPS56156056 A JP S56156056A
Authority
JP
Japan
Prior art keywords
incoming call
terminal
controlled
switch
auidble
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
JP5973980A
Other languages
Japanese (ja)
Inventor
Hiroo Iijima
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 JP5973980A priority Critical patent/JPS56156056A/en
Publication of JPS56156056A publication Critical patent/JPS56156056A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing

Abstract

PURPOSE:To facilitate a discrimination for an incoming call and at the same time obtain many kinds of incoming calls, by installing plural types of audible signal generators and then transmitting different auidble signals according to the kind of incoming call to a subscriber terminal. CONSTITUTION:In case an office incoming call is given to a subcriber terminal TEL, a switch SWO is controlled so that an auudble signal SO is transmitted to the terminal TEL via a transformer 2. In the same way, a switch SW1 is controlled with an incoming call within own station, and a switch SWN is controlled according to other kinds of calls. In such a way, a central control device works so that an auidble signal is transmitted and inhibited to the terminal TEL according to the kind of the incoming call to ensure a discrimination for an incoming call at a subscriber terminal.
JP5973980A 1980-05-06 1980-05-06 Discriminating system for incoming call Pending JPS56156056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5973980A JPS56156056A (en) 1980-05-06 1980-05-06 Discriminating system for incoming call

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5973980A JPS56156056A (en) 1980-05-06 1980-05-06 Discriminating system for incoming call

Publications (1)

Publication Number Publication Date
JPS56156056A true JPS56156056A (en) 1981-12-02

Family

ID=13121883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5973980A Pending JPS56156056A (en) 1980-05-06 1980-05-06 Discriminating system for incoming call

Country Status (1)

Country Link
JP (1) JPS56156056A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277745A (en) * 1985-09-30 1987-04-09 Toshiba Corp Voice/data intergrating and exchanging system
JPH03196748A (en) * 1989-08-19 1991-08-28 Mitsubishi Electric Corp Ringing tone control method
JPH0432341A (en) * 1990-05-29 1992-02-04 Sekisui Chem Co Ltd Telephone system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277745A (en) * 1985-09-30 1987-04-09 Toshiba Corp Voice/data intergrating and exchanging system
JPH03196748A (en) * 1989-08-19 1991-08-28 Mitsubishi Electric Corp Ringing tone control method
JPH0432341A (en) * 1990-05-29 1992-02-04 Sekisui Chem Co Ltd Telephone system

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