JPH04117860A - Conference telephone system - Google Patents

Conference telephone system

Info

Publication number
JPH04117860A
JPH04117860A JP23744290A JP23744290A JPH04117860A JP H04117860 A JPH04117860 A JP H04117860A JP 23744290 A JP23744290 A JP 23744290A JP 23744290 A JP23744290 A JP 23744290A JP H04117860 A JPH04117860 A JP H04117860A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
conference
sponsor
circuit
subscriber
control
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
JP23744290A
Inventor
Fumio Onimaru
Shigeru Shimizu
Original Assignee
Nec Corp
Nec Tohoku 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

Links

Abstract

PURPOSE: To start a conference quickly on emergency without remodeling of the hardware and the software of an exchange main body by allowing a conference sponsor itself to control entirely the invitation of the conference, start of the conference and end of the conference or the like in terms of a PB signal from a subscriber terminal equipment not through the operator.
CONSTITUTION: When a conference sponsor dials a subscriber number of a conference sponsor port 3 from a subscriber terminal equipment 9-1 and an exchange 1 sends a call signal to the conference sponsor port 3, a control circuit 8 connects the conference sponsor port 3 to a talkie circuit 6 and a PB signal reception circuit 7 via a conference switch circuit 5. The conference sponsor uses the subscriber terminal equipment 9-1 to receive an operation guide service for setting a conference network from the talkie circuit 6 and sends a subscriber number of the conference participant. The control circuit 8 calculates number of the conference participant ports for the conference and uses the conference sponsor port 3 and the conference participant ports 4-1 to 4-n to apply voice attenuation control.
COPYRIGHT: (C)1992,JPO&Japio
JP23744290A 1990-09-07 1990-09-07 Conference telephone system Pending JPH04117860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23744290A JPH04117860A (en) 1990-09-07 1990-09-07 Conference telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23744290A JPH04117860A (en) 1990-09-07 1990-09-07 Conference telephone system

Publications (1)

Publication Number Publication Date
JPH04117860A true true JPH04117860A (en) 1992-04-17

Family

ID=17015418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23744290A Pending JPH04117860A (en) 1990-09-07 1990-09-07 Conference telephone system

Country Status (1)

Country Link
JP (1) JPH04117860A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06217021A (en) * 1992-10-16 1994-08-05 Internatl Business Mach Corp <Ibm> Calling set-up and channel allocation method and system for multi-media network bus
JPH07327085A (en) * 1994-05-31 1995-12-12 Nec Corp Network independent type inter-multi-point video conference equipment and its connection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06217021A (en) * 1992-10-16 1994-08-05 Internatl Business Mach Corp <Ibm> Calling set-up and channel allocation method and system for multi-media network bus
JPH07327085A (en) * 1994-05-31 1995-12-12 Nec Corp Network independent type inter-multi-point video conference equipment and its connection system

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