CH408129A - Conference call for telephone participants - Google Patents

Conference call for telephone participants

Info

Publication number
CH408129A
CH408129A CH889663A CH889663A CH408129A CH 408129 A CH408129 A CH 408129A CH 889663 A CH889663 A CH 889663A CH 889663 A CH889663 A CH 889663A CH 408129 A CH408129 A CH 408129A
Authority
CH
Switzerland
Prior art keywords
conference call
participants
telephone
telephone participants
conference
Prior art date
Application number
CH889663A
Other languages
German (de)
Inventor
Albert Dipl-Ing Schelle Arnold
Haens-Juerg Dipl Ing Mayer
Original Assignee
Standard Telephon & Radio Ag
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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Priority to CH889663A priority Critical patent/CH408129A/en
Publication of CH408129A publication Critical patent/CH408129A/en
Priority to CH540268A priority patent/CH489161A/en

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)
CH889663A 1963-11-17 1963-11-17 Conference call for telephone participants CH408129A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH889663A CH408129A (en) 1963-11-17 1963-11-17 Conference call for telephone participants
CH540268A CH489161A (en) 1963-11-17 1968-04-10 Conference call for telephone participants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH889663A CH408129A (en) 1963-11-17 1963-11-17 Conference call for telephone participants

Publications (1)

Publication Number Publication Date
CH408129A true CH408129A (en) 1966-02-28

Family

ID=4345980

Family Applications (1)

Application Number Title Priority Date Filing Date
CH889663A CH408129A (en) 1963-11-17 1963-11-17 Conference call for telephone participants

Country Status (1)

Country Link
CH (1) CH408129A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511776A1 (en) * 1974-03-22 1975-09-25 Western Electric Co CONFERENCE CIRCUIT
DE2746624A1 (en) * 1976-10-18 1978-04-20 Western Electric Co CONFERENCE ARRANGEMENT
DE3013208A1 (en) * 1980-04-03 1981-10-08 Siemens AG, 1000 Berlin und 8000 München Internal telephone conference circuit - has modified connection channels permitting participation of public telephone subscriber to participate
DE3146865A1 (en) * 1980-12-01 1982-07-01 Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven "TELEPHONE CONFERENCE SYSTEM"
DE3146363A1 (en) * 1980-12-01 1982-09-16 Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven "TELEPHONE CONFERENCE SYSTEM"
DE3535411A1 (en) * 1985-10-04 1987-04-09 Neumann Elektronik Gmbh DEVICE AND METHOD FOR CARRYING OUT TELEPHONE CALLS BETWEEN THREE AND MORE PARTICIPANTS

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511776A1 (en) * 1974-03-22 1975-09-25 Western Electric Co CONFERENCE CIRCUIT
DE2746624A1 (en) * 1976-10-18 1978-04-20 Western Electric Co CONFERENCE ARRANGEMENT
DE3013208A1 (en) * 1980-04-03 1981-10-08 Siemens AG, 1000 Berlin und 8000 München Internal telephone conference circuit - has modified connection channels permitting participation of public telephone subscriber to participate
DE3146865A1 (en) * 1980-12-01 1982-07-01 Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven "TELEPHONE CONFERENCE SYSTEM"
DE3146363A1 (en) * 1980-12-01 1982-09-16 Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven "TELEPHONE CONFERENCE SYSTEM"
DE3535411A1 (en) * 1985-10-04 1987-04-09 Neumann Elektronik Gmbh DEVICE AND METHOD FOR CARRYING OUT TELEPHONE CALLS BETWEEN THREE AND MORE PARTICIPANTS
EP0218149A2 (en) * 1985-10-04 1987-04-15 Neumann Elektronik GmbH Device and method for realizing telephone conversations between three and more subscriber sets
EP0218149A3 (en) * 1985-10-04 1989-06-28 Neumann Elektronik Gmbh Device and method for realizing telephone conversations between three and more subscriber sets

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