JPS56141652A - Interphone equipment - Google Patents

Interphone equipment

Info

Publication number
JPS56141652A
JPS56141652A JP4641580A JP4641580A JPS56141652A JP S56141652 A JPS56141652 A JP S56141652A JP 4641580 A JP4641580 A JP 4641580A JP 4641580 A JP4641580 A JP 4641580A JP S56141652 A JPS56141652 A JP S56141652A
Authority
JP
Japan
Prior art keywords
ela
call
interphone set
connection
slave
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
JP4641580A
Other languages
Japanese (ja)
Inventor
Shigeo Tsukamoto
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.)
Taiko Electric Works Ltd
Original Assignee
Taiko Electric Works 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 Taiko Electric Works Ltd filed Critical Taiko Electric Works Ltd
Priority to JP4641580A priority Critical patent/JPS56141652A/en
Publication of JPS56141652A publication Critical patent/JPS56141652A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/04—Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

PURPOSE:To eliminate uneasiness caused by delay of connection, when connecting a slave interphone set and a master interphone set, or connecting to a remote contact subscriber through a telephone line, by controlling the connection between a voice message generation means and a slave interphone set. CONSTITUTION:When a slave interphone set ELA has made a call operation, a call display is made to a master interphone set MA. On the other hand, when the call has been confirmed by the control circuit CU, a voice message generation means GM is activated, also the GM is connected with the ELA, and an information message is sounded from the speaker of the ELA. Said circuit CU supervises a response of the MA, and unless the MA responds within a prescribed time, the CU connects the ELA to the trunk terminal L, activates the automatic dial equipment AD, and calls a remote contact subscriber. The ELA and the GM are disconnected by a response of the MA, or when a call of the AD has been completed. And, the CU controls the connection of the MA and the contact subscriber.
JP4641580A 1980-04-08 1980-04-08 Interphone equipment Pending JPS56141652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4641580A JPS56141652A (en) 1980-04-08 1980-04-08 Interphone equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4641580A JPS56141652A (en) 1980-04-08 1980-04-08 Interphone equipment

Publications (1)

Publication Number Publication Date
JPS56141652A true JPS56141652A (en) 1981-11-05

Family

ID=12746511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4641580A Pending JPS56141652A (en) 1980-04-08 1980-04-08 Interphone equipment

Country Status (1)

Country Link
JP (1) JPS56141652A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6091755A (en) * 1983-10-26 1985-05-23 Nec Corp Remote supervisory device
JPS61257057A (en) * 1985-05-10 1986-11-14 Nec Corp Interphone system
JPH04318745A (en) * 1991-04-18 1992-11-10 Matsushita Electric Ind Co Ltd Emergency notice device for elevator
JPH08242312A (en) * 1995-11-29 1996-09-17 Hitachi Building Syst Eng & Service Co Ltd Remote monitoring device for building

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5387607A (en) * 1977-01-12 1978-08-02 Nec Corp Automtic transfer unit
JPS5542473A (en) * 1978-09-21 1980-03-25 Taiko Denki Seisakusho:Kk Connection system to telephone circuit of interphone unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5387607A (en) * 1977-01-12 1978-08-02 Nec Corp Automtic transfer unit
JPS5542473A (en) * 1978-09-21 1980-03-25 Taiko Denki Seisakusho:Kk Connection system to telephone circuit of interphone unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6091755A (en) * 1983-10-26 1985-05-23 Nec Corp Remote supervisory device
JPH0131826B2 (en) * 1983-10-26 1989-06-28 Nippon Electric Co
JPS61257057A (en) * 1985-05-10 1986-11-14 Nec Corp Interphone system
JPH0581106B2 (en) * 1985-05-10 1993-11-11 Nippon Electric Co
JPH04318745A (en) * 1991-04-18 1992-11-10 Matsushita Electric Ind Co Ltd Emergency notice device for elevator
JPH08242312A (en) * 1995-11-29 1996-09-17 Hitachi Building Syst Eng & Service Co Ltd Remote monitoring device for building

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