JPS5675763A - Conference connection system - Google Patents

Conference connection system

Info

Publication number
JPS5675763A
JPS5675763A JP15330179A JP15330179A JPS5675763A JP S5675763 A JPS5675763 A JP S5675763A JP 15330179 A JP15330179 A JP 15330179A JP 15330179 A JP15330179 A JP 15330179A JP S5675763 A JPS5675763 A JP S5675763A
Authority
JP
Japan
Prior art keywords
conference
tel
stations
station
connection 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.)
Pending
Application number
JP15330179A
Other languages
Japanese (ja)
Inventor
Bunshiro Igarashi
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 JP15330179A priority Critical patent/JPS5675763A/en
Publication of JPS5675763A publication Critical patent/JPS5675763A/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

Abstract

PURPOSE:To enable the conference connection of multistation and multimembers over a plurality of stations, by using only one relay line between stations, through the provision of a conference relay device, in the multistation and multimembers conference connection system using an automatic exchanger. CONSTITUTION:Via a relay line D-2 connected to the 1st station A and the 2nd station B, a conference invitation telephone set CF TEL connecting a plurality of called conference telephone sets TEL is provided with the 1st station A. Further, in the conference connection system of the automatic exchanger, the conference relay device CFRT having one input terminal connected to the conference invitation telephone set CF TEL via a relay line D-2 between stations and a plurality of output terminals connected to called conference telephone sets is privided with the 2nd station B, allowing to make call-out connection from the conference invitation telephone set CF TEL to the called conference telephone sets TEL by using only one relay line D-2 between stations.
JP15330179A 1979-11-27 1979-11-27 Conference connection system Pending JPS5675763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15330179A JPS5675763A (en) 1979-11-27 1979-11-27 Conference connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15330179A JPS5675763A (en) 1979-11-27 1979-11-27 Conference connection system

Publications (1)

Publication Number Publication Date
JPS5675763A true JPS5675763A (en) 1981-06-23

Family

ID=15559478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15330179A Pending JPS5675763A (en) 1979-11-27 1979-11-27 Conference connection system

Country Status (1)

Country Link
JP (1) JPS5675763A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165470A (en) * 1982-03-26 1983-09-30 Fujitsu Ltd Conference telephone system
JPS5970070A (en) * 1982-10-13 1984-04-20 Nippon Telegr & Teleph Corp <Ntt> Connecting method of multiple-connection subscriber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165470A (en) * 1982-03-26 1983-09-30 Fujitsu Ltd Conference telephone system
JPS5970070A (en) * 1982-10-13 1984-04-20 Nippon Telegr & Teleph Corp <Ntt> Connecting method of multiple-connection subscriber
JPH0415655B2 (en) * 1982-10-13 1992-03-18 Nippon Telegraph & Telephone

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