JPS5624896A - Multipartite telephone set calling system - Google Patents

Multipartite telephone set calling system

Info

Publication number
JPS5624896A
JPS5624896A JP10056579A JP10056579A JPS5624896A JP S5624896 A JPS5624896 A JP S5624896A JP 10056579 A JP10056579 A JP 10056579A JP 10056579 A JP10056579 A JP 10056579A JP S5624896 A JPS5624896 A JP S5624896A
Authority
JP
Japan
Prior art keywords
telephone set
trunk
set sub
8ost
party
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
JP10056579A
Other languages
Japanese (ja)
Inventor
Shigeru Fujimori
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 JP10056579A priority Critical patent/JPS5624896A/en
Publication of JPS5624896A publication Critical patent/JPS5624896A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange

Landscapes

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

Abstract

PURPOSE:To economize a calling system, by selecting types of signals calling respective multiparty telephone sets and by providing a trunk, which monitors off- hook of multiparty telephone sets, commonly to these many multiparty telephone set lines. CONSTITUTION:When the number of telephone set SUB.B is dialed, a closed circuit of the path of telephone set SUB.A-telephone set SUB.B-8-party trunk 8PT- main link switch SW-8-party trunk 8OST is formed by 8-party telephone set mutual connection and trunk selection means. When marker MKR selects trunk 8OST, call signal information corresponding to telephone set SUB.B is sent to trunk 8OST. Then, the call sounder of telephone set SUB.B sounds to call. When telephone set SUB.B hooks off the handset to respond, the response monitor circuit in trunk 8OST is operated to stop transmission of the call signal.
JP10056579A 1979-08-06 1979-08-06 Multipartite telephone set calling system Pending JPS5624896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10056579A JPS5624896A (en) 1979-08-06 1979-08-06 Multipartite telephone set calling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10056579A JPS5624896A (en) 1979-08-06 1979-08-06 Multipartite telephone set calling system

Publications (1)

Publication Number Publication Date
JPS5624896A true JPS5624896A (en) 1981-03-10

Family

ID=14277433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10056579A Pending JPS5624896A (en) 1979-08-06 1979-08-06 Multipartite telephone set calling system

Country Status (1)

Country Link
JP (1) JPS5624896A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112147U (en) * 1983-01-19 1984-07-28 スガ試験機株式会社 Test tank of salt spray test machine
JPS59132334A (en) * 1983-01-19 1984-07-30 Suga Shikenki Kk Testing tank for salt water spraying testing machine
JPS60169739A (en) * 1984-02-14 1985-09-03 Kanto Jidosha Kogyo Kk Corrosion accelerating test method
JPS61155727A (en) * 1984-12-27 1986-07-15 Suga Shikenki Kk Compound corrosion cycle tester

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112147U (en) * 1983-01-19 1984-07-28 スガ試験機株式会社 Test tank of salt spray test machine
JPS59132334A (en) * 1983-01-19 1984-07-30 Suga Shikenki Kk Testing tank for salt water spraying testing machine
JPS60169739A (en) * 1984-02-14 1985-09-03 Kanto Jidosha Kogyo Kk Corrosion accelerating test method
JPH0336177B2 (en) * 1984-02-14 1991-05-30 Kanto Jidosha Kogyo Kk
JPS61155727A (en) * 1984-12-27 1986-07-15 Suga Shikenki Kk Compound corrosion cycle tester
JPH0342785B2 (en) * 1984-12-27 1991-06-28

Similar Documents

Publication Publication Date Title
CA1049671A (en) Key telephone system intercom arrangement
GB1283968A (en) Switching systems
US4060700A (en) Two-party telephone system
JPS5624896A (en) Multipartite telephone set calling system
US3331924A (en) Telephone systems
JPS55138955A (en) Time sharing channel interruption system
JP2600938B2 (en) Emergency simultaneous notification device via telephone network
JP2577816B2 (en) Telephone system
JPS61261953A (en) Telephone unit
JP2663361B2 (en) International public telephone line selection device
JPS59205895A (en) Key telephone set
SU604180A2 (en) Two-wire selecting loudspeaking device with central power supply
JPS57131157A (en) Absence pretending telephone set
JPS5690670A (en) Communication system
JPS55134567A (en) Incoming transfer system
JPH01120992A (en) Key telephone set
JPS55125756A (en) Connection test system for automatic exchanger
JPS6338355A (en) Multi-function telephone set with continuous originating function of plural selection signals
JPS5689162A (en) Number change guide system
GB969537A (en) Improvements in and relating to telephone systems
JPS6315556A (en) Controlling system for sending dial tone
JPH0247967A (en) Incoming ringer for private branch exchange
JPH04192955A (en) Householed simple telephone exchange
JPH02257746A (en) Private branch of exchange for home use
JPS5637759A (en) Connection system for digital telephone set