JPH0256157A - Telephone system - Google Patents

Telephone system

Info

Publication number
JPH0256157A
JPH0256157A JP20765788A JP20765788A JPH0256157A JP H0256157 A JPH0256157 A JP H0256157A JP 20765788 A JP20765788 A JP 20765788A JP 20765788 A JP20765788 A JP 20765788A JP H0256157 A JPH0256157 A JP H0256157A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
telephone set
call
channel
made
main device
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
JP20765788A
Other versions
JP2734546B2 (en )
Inventor
Fukashi Kamitou
Original Assignee
Matsushita Electric Ind 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

Links

Abstract

PURPOSE: To transmit an emergency business to a telephone user who is calling a third person by connecting a second channel and making a call through a speaker phone when a call by a first channel is made.
CONSTITUTION: When a telephone set A and a telephone set B are connected by a main device 1 through the first channel and the call is made through a handset 21, when another telephone set C calls the telephone set A, the main device 1 returns a busy signal to the telephone set C. When the user of the telephone set C which receives this makes an additional dial, the main device 1 connects the telephone set C to the second channel of the telephone set A. Thus, the call can be made between the telephone set A and the telephone set C through a speaker phone 6. When the user listens to a message from the speaker phone 6 and pushes the response button of the telephone set A, the main device 1 transmits a ring-off signal to the telephone set B, switches the connection of the telephone set A with the telephone set C to the connection of the first channel and the call through the handset 21 is made.
COPYRIGHT: (C)1990,JPO&Japio
JP20765788A 1988-08-22 1988-08-22 Telephone equipment Expired - Fee Related JP2734546B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20765788A JP2734546B2 (en) 1988-08-22 1988-08-22 Telephone equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20765788A JP2734546B2 (en) 1988-08-22 1988-08-22 Telephone equipment

Publications (2)

Publication Number Publication Date
JPH0256157A true true JPH0256157A (en) 1990-02-26
JP2734546B2 JP2734546B2 (en) 1998-03-30

Family

ID=16543402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20765788A Expired - Fee Related JP2734546B2 (en) 1988-08-22 1988-08-22 Telephone equipment

Country Status (1)

Country Link
JP (1) JP2734546B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440730A (en) * 1990-06-07 1992-02-12 Fujitsu Ltd Voice call incoming system for busy terminal
GB2408897A (en) * 2002-08-23 2005-06-08 Motorola Inc Dedicated high priority access channel
JP2008258686A (en) * 2007-03-30 2008-10-23 Saxa Inc Terminal device and conference system
JP2012070165A (en) * 2010-09-22 2012-04-05 Nakayo Telecommun Inc Telephone system having multiple speech output function
JP2013066105A (en) * 2011-09-20 2013-04-11 Nippon Telegr & Teleph Corp <Ntt> Message notification system and media server

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150449A (en) * 1984-12-24 1986-07-09 Nec Corp Voice calling system
JPS6223662A (en) * 1985-07-24 1987-01-31 Matsushita Electric Ind Co Ltd Busy tone incoming equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150449A (en) * 1984-12-24 1986-07-09 Nec Corp Voice calling system
JPS6223662A (en) * 1985-07-24 1987-01-31 Matsushita Electric Ind Co Ltd Busy tone incoming equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440730A (en) * 1990-06-07 1992-02-12 Fujitsu Ltd Voice call incoming system for busy terminal
GB2408897A (en) * 2002-08-23 2005-06-08 Motorola Inc Dedicated high priority access channel
US7003303B2 (en) * 2002-08-23 2006-02-21 Motorola, Inc. Dedicated high priority access channel
GB2408897B (en) * 2002-08-23 2006-05-10 Motorola Inc Dedicated high priority access channel
KR100802975B1 (en) * 2002-08-23 2008-02-14 모토로라 인코포레이티드 Dedicated high priority access channel
JP2008258686A (en) * 2007-03-30 2008-10-23 Saxa Inc Terminal device and conference system
JP2012070165A (en) * 2010-09-22 2012-04-05 Nakayo Telecommun Inc Telephone system having multiple speech output function
JP2013066105A (en) * 2011-09-20 2013-04-11 Nippon Telegr & Teleph Corp <Ntt> Message notification system and media server

Also Published As

Publication number Publication date Type
JP2734546B2 (en) 1998-03-30 grant

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees