JPS5429903A - Conference service system of key telephonen system - Google Patents

Conference service system of key telephonen system

Info

Publication number
JPS5429903A
JPS5429903A JP9628977A JP9628977A JPS5429903A JP S5429903 A JPS5429903 A JP S5429903A JP 9628977 A JP9628977 A JP 9628977A JP 9628977 A JP9628977 A JP 9628977A JP S5429903 A JPS5429903 A JP S5429903A
Authority
JP
Japan
Prior art keywords
telephonen
key
conference service
service system
conference
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
JP9628977A
Other languages
Japanese (ja)
Other versions
JPS5623347B2 (en
Inventor
Ichiro Taneda
Toshio Takara
Shizuo Hayashi
Katsusuke Murota
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.)
HASEGAWA DENKI SEISAKUSHO
HASEGAWA DENKI SEISAKUSHO KK
Fujitsu Ltd
Original Assignee
HASEGAWA DENKI SEISAKUSHO
HASEGAWA DENKI SEISAKUSHO KK
Fujitsu 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 HASEGAWA DENKI SEISAKUSHO, HASEGAWA DENKI SEISAKUSHO KK, Fujitsu Ltd filed Critical HASEGAWA DENKI SEISAKUSHO
Priority to JP9628977A priority Critical patent/JPS5429903A/en
Publication of JPS5429903A publication Critical patent/JPS5429903A/en
Publication of JPS5623347B2 publication Critical patent/JPS5623347B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

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

Abstract

PURPOSE:To make the conference service possible in a simple circuit constitution by providing a conference switch in every telephone set.
JP9628977A 1977-08-11 1977-08-11 Conference service system of key telephonen system Granted JPS5429903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9628977A JPS5429903A (en) 1977-08-11 1977-08-11 Conference service system of key telephonen system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9628977A JPS5429903A (en) 1977-08-11 1977-08-11 Conference service system of key telephonen system

Publications (2)

Publication Number Publication Date
JPS5429903A true JPS5429903A (en) 1979-03-06
JPS5623347B2 JPS5623347B2 (en) 1981-05-30

Family

ID=14160912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9628977A Granted JPS5429903A (en) 1977-08-11 1977-08-11 Conference service system of key telephonen system

Country Status (1)

Country Link
JP (1) JPS5429903A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110726A (en) * 1974-07-16 1976-01-28 Tokyo Shibaura Electric Co KARAATEREBIJONJUZOSOCHI
JPS5126810U (en) * 1974-08-19 1976-02-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110726A (en) * 1974-07-16 1976-01-28 Tokyo Shibaura Electric Co KARAATEREBIJONJUZOSOCHI
JPS5126810U (en) * 1974-08-19 1976-02-27

Also Published As

Publication number Publication date
JPS5623347B2 (en) 1981-05-30

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