JPS5739664A - Conference telephone communication system - Google Patents

Conference telephone communication system

Info

Publication number
JPS5739664A
JPS5739664A JP11483380A JP11483380A JPS5739664A JP S5739664 A JPS5739664 A JP S5739664A JP 11483380 A JP11483380 A JP 11483380A JP 11483380 A JP11483380 A JP 11483380A JP S5739664 A JPS5739664 A JP S5739664A
Authority
JP
Japan
Prior art keywords
conference
exchanger
telephone
relating
communication
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
JP11483380A
Other languages
Japanese (ja)
Inventor
Koichiro Yamaguchi
Seiro Yura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11483380A priority Critical patent/JPS5739664A/en
Publication of JPS5739664A publication Critical patent/JPS5739664A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—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)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To achieve communication for all the conference member with one dial operation through the conference call, by dialing a conference invitation specific number, controlling the data exchanger of an exchange station and multiple-connection of telepone lines relating to the conference member to a conference trunk. CONSTITUTION:In an exchange station A, a telephone set 1a relating to the conference manager dials the conference invitation specific number, it is received and processed with a telephone exchanger 2a, and transmitted to a data exchanger 3a. The exchanger 3a transfers required information such as telephone numbers relating inviters desired and conference communication information to exchange stations B, C. Data exchangers 3b, 3c control and connect the desired telephone sets 1b, 1c to selectors 5b, 5c and the confirmed response is returned to the exchanger 3a. The exchanger 3a switches selectors 5a-1 and 5a-2 of the station itself to the communication side. Thus, the telephone lines relating telephone sets 1a, 1b, 1c are all connected to a conference trunk 8 for three party communication.
JP11483380A 1980-08-22 1980-08-22 Conference telephone communication system Pending JPS5739664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11483380A JPS5739664A (en) 1980-08-22 1980-08-22 Conference telephone communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11483380A JPS5739664A (en) 1980-08-22 1980-08-22 Conference telephone communication system

Publications (1)

Publication Number Publication Date
JPS5739664A true JPS5739664A (en) 1982-03-04

Family

ID=14647828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11483380A Pending JPS5739664A (en) 1980-08-22 1980-08-22 Conference telephone communication system

Country Status (1)

Country Link
JP (1) JPS5739664A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001628A1 (en) * 1983-10-05 1985-04-11 Manufacturing Administration & Management Systems, Automated system for establishing telephone voice connections
JPS61193552A (en) * 1985-02-22 1986-08-28 Hitachi Ltd Conference telephone set
JPH02253757A (en) * 1989-03-28 1990-10-12 Nippon Telegr & Teleph Corp <Ntt> Telephone conference system
US5206901A (en) * 1991-12-23 1993-04-27 At&T Bell Laboratories Method and apparatus for alerting multiple telephones for an incoming call

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001628A1 (en) * 1983-10-05 1985-04-11 Manufacturing Administration & Management Systems, Automated system for establishing telephone voice connections
US4600814A (en) * 1983-10-05 1986-07-15 Manufacturing Administrations Management Systems, Inc. Automated system for establishing telephone voice connections
JPS61193552A (en) * 1985-02-22 1986-08-28 Hitachi Ltd Conference telephone set
JPH0636531B2 (en) * 1985-02-22 1994-05-11 株式会社日立製作所 Conference phone system
JPH02253757A (en) * 1989-03-28 1990-10-12 Nippon Telegr & Teleph Corp <Ntt> Telephone conference system
US5206901A (en) * 1991-12-23 1993-04-27 At&T Bell Laboratories Method and apparatus for alerting multiple telephones for an incoming call

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