JPS56168485A - Originating and terminating control system during release of hook - Google Patents

Originating and terminating control system during release of hook

Info

Publication number
JPS56168485A
JPS56168485A JP7175580A JP7175580A JPS56168485A JP S56168485 A JPS56168485 A JP S56168485A JP 7175580 A JP7175580 A JP 7175580A JP 7175580 A JP7175580 A JP 7175580A JP S56168485 A JPS56168485 A JP S56168485A
Authority
JP
Japan
Prior art keywords
circuit
hook
state
switch
display
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
JP7175580A
Other languages
Japanese (ja)
Inventor
Hiroshi Shimizu
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 JP7175580A priority Critical patent/JPS56168485A/en
Publication of JPS56168485A publication Critical patent/JPS56168485A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Abstract

PURPOSE:To reduce the power consumption for the terminal of a digital subscriber and to enable to terminate, by discontinuing the digital communication when a hook is released for the terminal of digital subscriber under a noncommunication state. CONSTITUTION:In case a hook switch 9 is released for a long time in a noncommunication state, a control circuit 12 makes a transmitting circuit 15 a noncommunication state and generates alarm tone to a handset 10 or a speaker 11 with a display 8 via an interface circuit 13. A terminating request given from another subscriber in a hook release state is supplied to the circuit 12 via the circuit 13 since a receiving circuit 16 is in a working mode. The circuit 12 makes the release of hook ineffective and makes an A/D converting part of the circuit 13 working state to supply ringing tone to the speaker 11. Confirming the display of alarm on a display device 8, the subscriber pushes a button switch 14 or turns on the switch 9 and then turns off the switch 9 again. Thus the circuit 12 turns off the alarm display and transmits an answer signal.
JP7175580A 1980-05-29 1980-05-29 Originating and terminating control system during release of hook Pending JPS56168485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7175580A JPS56168485A (en) 1980-05-29 1980-05-29 Originating and terminating control system during release of hook

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7175580A JPS56168485A (en) 1980-05-29 1980-05-29 Originating and terminating control system during release of hook

Publications (1)

Publication Number Publication Date
JPS56168485A true JPS56168485A (en) 1981-12-24

Family

ID=13469661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7175580A Pending JPS56168485A (en) 1980-05-29 1980-05-29 Originating and terminating control system during release of hook

Country Status (1)

Country Link
JP (1) JPS56168485A (en)

Similar Documents

Publication Publication Date Title
ES8401698A1 (en) Home communications and control system
JPS56117467A (en) Automatic outgoing device
JPS56168485A (en) Originating and terminating control system during release of hook
JPS6469154A (en) Public telephone set
JPS5563157A (en) Automatic answering telephone system
JPS5461806A (en) Audio response unit
JPS5613866A (en) Communication device
JPS5671366A (en) Telephone set having communication time elapsed alarm function
JPS6457862A (en) Telephone set for remote supervisory and controlling equipment
JPS57162868A (en) Data terminal device
JPS5715567A (en) Facsimile system
JPS57155846A (en) Radio telephone set
JPS5451702A (en) Automatic power supply cut-off circuit
JPS57131157A (en) Absence pretending telephone set
JPS5758452A (en) Button telephone device
JPS6417549A (en) Network control unit
JPS5549065A (en) Charging pulse transmission system
JPS57155847A (en) Radio telephone set
JPS54139319A (en) Key telephone system
JPS6413848A (en) Electronic automatic exchange with message informing function
JPS556930A (en) Hand-free answering system for key telephone system
JPS6442981A (en) Facsimile equipment
JPS5792990A (en) Electronic key telephone device
JPS6455950A (en) Telephone system
JPS5541017A (en) Telephone set