JPS56161753A - Key telephone set - Google Patents

Key telephone set

Info

Publication number
JPS56161753A
JPS56161753A JP6408480A JP6408480A JPS56161753A JP S56161753 A JPS56161753 A JP S56161753A JP 6408480 A JP6408480 A JP 6408480A JP 6408480 A JP6408480 A JP 6408480A JP S56161753 A JPS56161753 A JP S56161753A
Authority
JP
Japan
Prior art keywords
channel
telephone set
contact
route
transmitted
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
JP6408480A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0131359B2 (enrdf_load_html_response
Inventor
Hirozo Shintani
Takeo Oba
Eiji Morikami
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.)
Iwatsu Electric Co Ltd
Original Assignee
Iwatsu 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 Iwatsu Electric Co Ltd filed Critical Iwatsu Electric Co Ltd
Priority to JP6408480A priority Critical patent/JPS56161753A/ja
Publication of JPS56161753A publication Critical patent/JPS56161753A/ja
Publication of JPH0131359B2 publication Critical patent/JPH0131359B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP6408480A 1980-05-16 1980-05-16 Key telephone set Granted JPS56161753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6408480A JPS56161753A (en) 1980-05-16 1980-05-16 Key telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6408480A JPS56161753A (en) 1980-05-16 1980-05-16 Key telephone set

Publications (2)

Publication Number Publication Date
JPS56161753A true JPS56161753A (en) 1981-12-12
JPH0131359B2 JPH0131359B2 (enrdf_load_html_response) 1989-06-26

Family

ID=13247858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6408480A Granted JPS56161753A (en) 1980-05-16 1980-05-16 Key telephone set

Country Status (1)

Country Link
JP (1) JPS56161753A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422193A (en) * 1987-07-17 1989-01-25 Iwatsu Electric Co Ltd Telephone system
JPH0670962A (ja) * 1992-06-29 1994-03-15 Masao Takuwa 動物の下にマットを敷くことにより、マットから動物の湿気を取 り除く乾燥機具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422193A (en) * 1987-07-17 1989-01-25 Iwatsu Electric Co Ltd Telephone system
JPH0670962A (ja) * 1992-06-29 1994-03-15 Masao Takuwa 動物の下にマットを敷くことにより、マットから動物の湿気を取 り除く乾燥機具

Also Published As

Publication number Publication date
JPH0131359B2 (enrdf_load_html_response) 1989-06-26

Similar Documents

Publication Publication Date Title
JPS56161753A (en) Key telephone set
JPS5313806A (en) Telephone extension system
JPS5399802A (en) Specific subscriber calling equipment of automatic answering telephone set
JPS51128205A (en) Telephone device
JPS5279706A (en) Subscriber line calling system in key telephone unit
GB921835A (en) Improvements in or relating to telecommunication systems
JPS5422705A (en) Extension subscriber calling system
JPS53119606A (en) Double concentrating transmission system of tree-pair line
JPS52125213A (en) Absence transfer system
JPS5698955A (en) Constituting method of meeting line for multi-direction multiplex communication
JPS5341110A (en) Calling system for exchange of moving body
JPS5624863A (en) Transfer system for office incoming call
GB1480222A (en) Telephone intercommunication system provided with a common communication line to which access is guarded
JPS52125214A (en) Calling subscriber number transmission system
JPS53100704A (en) Waiting-time connection system
JPS55134567A (en) Incoming transfer system
JPS53145408A (en) Telephone number display unit
JPS5612138A (en) Press-to-talk calling system of radio telephone
JPS5222408A (en) Add-on service system
JPS5612139A (en) Press-to-talk calling system of radio telephone set
JPS5370701A (en) Individual selection call receiver
JPS5279809A (en) Extension mutual trunk
JPS53132915A (en) Discrimination system for party line subscriber
JPS52146508A (en) Branch two-way communication
JPS53101913A (en) Selective calling signal system of party line telephone set