JPS5219009A - Speech calling system of key telephone system - Google Patents

Speech calling system of key telephone system

Info

Publication number
JPS5219009A
JPS5219009A JP9474975A JP9474975A JPS5219009A JP S5219009 A JPS5219009 A JP S5219009A JP 9474975 A JP9474975 A JP 9474975A JP 9474975 A JP9474975 A JP 9474975A JP S5219009 A JPS5219009 A JP S5219009A
Authority
JP
Japan
Prior art keywords
key telephone
speech calling
telephone system
speech
calling system
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
JP9474975A
Other languages
Japanese (ja)
Other versions
JPS5547784B2 (en
Inventor
Minoru Sasai
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.)
KANDA TSUUSHIN KOUGIYOU KK
Kanda Tsushin Kogyo Co Ltd
Original Assignee
KANDA TSUUSHIN KOUGIYOU KK
Kanda Tsushin Kogyo 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 KANDA TSUUSHIN KOUGIYOU KK, Kanda Tsushin Kogyo Co Ltd filed Critical KANDA TSUUSHIN KOUGIYOU KK
Priority to JP9474975A priority Critical patent/JPS5219009A/en
Publication of JPS5219009A publication Critical patent/JPS5219009A/en
Publication of JPS5547784B2 publication Critical patent/JPS5547784B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:Key telephone sets and the main equipment are connected by a 4 wire cable and individual speech calls are made possible.
JP9474975A 1975-08-05 1975-08-05 Speech calling system of key telephone system Granted JPS5219009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9474975A JPS5219009A (en) 1975-08-05 1975-08-05 Speech calling system of key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9474975A JPS5219009A (en) 1975-08-05 1975-08-05 Speech calling system of key telephone system

Publications (2)

Publication Number Publication Date
JPS5219009A true JPS5219009A (en) 1977-01-14
JPS5547784B2 JPS5547784B2 (en) 1980-12-02

Family

ID=14118763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9474975A Granted JPS5219009A (en) 1975-08-05 1975-08-05 Speech calling system of key telephone system

Country Status (1)

Country Link
JP (1) JPS5219009A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0490675U (en) * 1990-12-25 1992-08-07

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090308A (en) * 1973-12-11 1975-07-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5090308A (en) * 1973-12-11 1975-07-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0490675U (en) * 1990-12-25 1992-08-07

Also Published As

Publication number Publication date
JPS5547784B2 (en) 1980-12-02

Similar Documents

Publication Publication Date Title
JPS5250105A (en) Conference telephone system
GB1541868A (en) Digital tone generator for telephone dialling
GB1542700A (en) Loudspeaking telephone
JPS5269510A (en) Telephone ringing generator
JPS5219009A (en) Speech calling system of key telephone system
JPS51128205A (en) Telephone device
JPS5279706A (en) Subscriber line calling system in key telephone unit
JPS5213706A (en) Key telephone system
JPS51149711A (en) Conference telephone system
HK61379A (en) Telephone microphone
JPS5213708A (en) Telephone set
JPS51144504A (en) Telephone set
JPS5214890A (en) Compressed conductor manufacturing method and equipment
JPS52139305A (en) Extension calling system for key telephone equipment
JPS5410602A (en) Communication system for key telephone system
JPS52139306A (en) Calling system for key telephone equipment
JPS5264813A (en) Absentee calling answer circuit
JPS5224406A (en) Centralized service telephone answering system
IL50958A0 (en) Telephone cable elements
JPS51124302A (en) Method of displaying calling subscriber's numbers and display device
JPS5287304A (en) Extension line calling circuit in push-phone
JPS53105104A (en) Key telephone set
JPS52119803A (en) Automatic answering telephone set
JPS51121202A (en) Direct separate selective calling method
JPS5220708A (en) Button telephone set