JPS56156059A - Conference telephone system of conference ground number extension type - Google Patents

Conference telephone system of conference ground number extension type

Info

Publication number
JPS56156059A
JPS56156059A JP5896180A JP5896180A JPS56156059A JP S56156059 A JPS56156059 A JP S56156059A JP 5896180 A JP5896180 A JP 5896180A JP 5896180 A JP5896180 A JP 5896180A JP S56156059 A JPS56156059 A JP S56156059A
Authority
JP
Japan
Prior art keywords
subscriber
conference
telephone system
ground number
extension type
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
JP5896180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6130463B2 (enrdf_load_stackoverflow
Inventor
Saburo Ikeda
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 JP5896180A priority Critical patent/JPS56156059A/ja
Publication of JPS56156059A publication Critical patent/JPS56156059A/ja
Publication of JPS6130463B2 publication Critical patent/JPS6130463B2/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)
JP5896180A 1980-05-02 1980-05-02 Conference telephone system of conference ground number extension type Granted JPS56156059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5896180A JPS56156059A (en) 1980-05-02 1980-05-02 Conference telephone system of conference ground number extension type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5896180A JPS56156059A (en) 1980-05-02 1980-05-02 Conference telephone system of conference ground number extension type

Publications (2)

Publication Number Publication Date
JPS56156059A true JPS56156059A (en) 1981-12-02
JPS6130463B2 JPS6130463B2 (enrdf_load_stackoverflow) 1986-07-14

Family

ID=13099431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5896180A Granted JPS56156059A (en) 1980-05-02 1980-05-02 Conference telephone system of conference ground number extension type

Country Status (1)

Country Link
JP (1) JPS56156059A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236954A (ja) * 1985-08-09 1987-02-17 Nippon Telegr & Teleph Corp <Ntt> 会議通話方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236954A (ja) * 1985-08-09 1987-02-17 Nippon Telegr & Teleph Corp <Ntt> 会議通話方式

Also Published As

Publication number Publication date
JPS6130463B2 (enrdf_load_stackoverflow) 1986-07-14

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