JPS5793791A - Set system for external channel from stop of power application to re-start - Google Patents

Set system for external channel from stop of power application to re-start

Info

Publication number
JPS5793791A
JPS5793791A JP17016980A JP17016980A JPS5793791A JP S5793791 A JPS5793791 A JP S5793791A JP 17016980 A JP17016980 A JP 17016980A JP 17016980 A JP17016980 A JP 17016980A JP S5793791 A JPS5793791 A JP S5793791A
Authority
JP
Japan
Prior art keywords
power application
stop
during
telephone set
call
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
JP17016980A
Other languages
Japanese (ja)
Other versions
JPS6343958B2 (en
Inventor
Hideo Ohashi
Kazuhiro Usuda
Kosuke Hashimoto
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.)
Meisei Electric Co Ltd
Original Assignee
Meisei 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 Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP17016980A priority Critical patent/JPS5793791A/en
Publication of JPS5793791A publication Critical patent/JPS5793791A/en
Publication of JPS6343958B2 publication Critical patent/JPS6343958B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To enable main trunk incoming/outgoing call even during the stop of power application, by keeping the main trunk call during call as it is even if the power application is stopped, and connecting a vacant main trunk to any telephone set immediately after the stop of power application. CONSTITUTION:A main device ME is provided with a power application monitor circuit 5, channel monitor circuit 4, memory 3 and backup battery E. When the stop of power application is detected at the circuit 4, the connnection between a telephone set TEL1 during connection and an external line is held with a latching characteristic of a switching means, the connected information is stored in the memory 3, and a switching means to be connected to any telephone set TEL3 is operated to an external line not during connection. During the stop of power application, the connected information stored in the memory 3 is held with the battery E. At the re-start of power application, the telephone set TEL1 during call at the circuit 4 is detected, the connection correspondence between the external line during call and the telephone set TEl1 is discriminated, and the operation of the switching means can be kept.
JP17016980A 1980-12-02 1980-12-02 Set system for external channel from stop of power application to re-start Granted JPS5793791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17016980A JPS5793791A (en) 1980-12-02 1980-12-02 Set system for external channel from stop of power application to re-start

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17016980A JPS5793791A (en) 1980-12-02 1980-12-02 Set system for external channel from stop of power application to re-start

Publications (2)

Publication Number Publication Date
JPS5793791A true JPS5793791A (en) 1982-06-10
JPS6343958B2 JPS6343958B2 (en) 1988-09-01

Family

ID=15899958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17016980A Granted JPS5793791A (en) 1980-12-02 1980-12-02 Set system for external channel from stop of power application to re-start

Country Status (1)

Country Link
JP (1) JPS5793791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075194A (en) * 1983-09-30 1985-04-27 Fujitsu Ltd Power supply control system
JPS6192094A (en) * 1984-08-23 1986-05-10 ジ−メンス・アクチエンゲゼルシヤフト Circuit device for small-sized constitution exchange

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0493234U (en) * 1991-01-09 1992-08-13
JPH051604U (en) * 1991-04-26 1993-01-14 三幸株式会社 Umbrella holder for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075194A (en) * 1983-09-30 1985-04-27 Fujitsu Ltd Power supply control system
JPH0546158B2 (en) * 1983-09-30 1993-07-13 Fujitsu Ltd
JPS6192094A (en) * 1984-08-23 1986-05-10 ジ−メンス・アクチエンゲゼルシヤフト Circuit device for small-sized constitution exchange

Also Published As

Publication number Publication date
JPS6343958B2 (en) 1988-09-01

Similar Documents

Publication Publication Date Title
GB1067210A (en) Telephone hold program system
EP0067268A3 (en) Hook flash actuated telephone control device
CA2133127A1 (en) Cordless Telephone System
JPS5793791A (en) Set system for external channel from stop of power application to re-start
JPS5646354A (en) Automatic switching on/off circuit for power supply
JPS5563157A (en) Automatic answering telephone system
JPH0238039B2 (en)
JPS5686563A (en) Button telephone set
JPS54114011A (en) Loudspeaker telephone device
JPS5439510A (en) Detection circuit for outgoing call
GB1250118A (en)
US4029909A (en) Operator supervisory circuit for a key telephone system
JPS5643838A (en) Busy incoming system
JPS57162866A (en) Telephone concentrating response system
JPS56141648A (en) Automatic answering telephone set
JPS56123166A (en) Switching control system
JPS57168594A (en) Battery backup system of automatic private branch exchange device
JPS5662442A (en) Composite exchange system
JPS57131191A (en) Telephone device
JPS572140A (en) Battery saving system
JPS5533359A (en) Priority channel switching device
JPS57201366A (en) Remote monitor device
JPS5725768A (en) Power off circuit of telephone exchange
JPS6414641A (en) Backup system for building group managing system
JPS56164661A (en) Call auxiliary device