JPS55112067A - Connection system for conference telephone - Google Patents

Connection system for conference telephone

Info

Publication number
JPS55112067A
JPS55112067A JP1884579A JP1884579A JPS55112067A JP S55112067 A JPS55112067 A JP S55112067A JP 1884579 A JP1884579 A JP 1884579A JP 1884579 A JP1884579 A JP 1884579A JP S55112067 A JPS55112067 A JP S55112067A
Authority
JP
Japan
Prior art keywords
conference
connection
participators
trunk
tone
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
JP1884579A
Other languages
Japanese (ja)
Inventor
Katsunori Hiwasa
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 JP1884579A priority Critical patent/JPS55112067A/en
Publication of JPS55112067A publication Critical patent/JPS55112067A/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 secure the confirmation for the number of the conference participators by installing the discrimination signal sending means to the conference trunk in accordance with the number of connections plus the means which stops the signal tone sending via the indication given from the conference connection participator and thus securing the hearing of the discrimination tone for all participators having the connection to the conference telophones. CONSTITUTION:In this conference connection, participators A-E have the outgoing each and are then connected to originating register OR. Thus the connecting operation is required to conference trunk CFT through dialing. Firstly, subscriber A has the off-hook at the time designated previously, and then the connection is secured o register OR via the dial tone connection. And then the special number is dialed to catch trunk CFT. Thus register OR receives the special number and sends it to marker M. Receiving this number, marker M gives the connection between SUBA and trunk CFT. At this moment, the relays at the talking circuit part and the control circuit part are actuated in the number corresponding to the number of the conference participators. Thus SUBA can hear the special tone.
JP1884579A 1979-02-20 1979-02-20 Connection system for conference telephone Pending JPS55112067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1884579A JPS55112067A (en) 1979-02-20 1979-02-20 Connection system for conference telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1884579A JPS55112067A (en) 1979-02-20 1979-02-20 Connection system for conference telephone

Publications (1)

Publication Number Publication Date
JPS55112067A true JPS55112067A (en) 1980-08-29

Family

ID=11982886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1884579A Pending JPS55112067A (en) 1979-02-20 1979-02-20 Connection system for conference telephone

Country Status (1)

Country Link
JP (1) JPS55112067A (en)

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