JPS5324207A - Key telephone set - Google Patents

Key telephone set

Info

Publication number
JPS5324207A
JPS5324207A JP9916976A JP9916976A JPS5324207A JP S5324207 A JPS5324207 A JP S5324207A JP 9916976 A JP9916976 A JP 9916976A JP 9916976 A JP9916976 A JP 9916976A JP S5324207 A JPS5324207 A JP S5324207A
Authority
JP
Japan
Prior art keywords
key telephone
telephone set
extensions
securing
ensure
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
JP9916976A
Other languages
Japanese (ja)
Inventor
Minoru Yamanaka
Tetsuya Kamimura
Hidemitsu Iwaya
Akira Suzuki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9916976A priority Critical patent/JPS5324207A/en
Publication of JPS5324207A publication Critical patent/JPS5324207A/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
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To ensure an effective telephone conversation between extensions by securing an easy call for other key telephone sets using an extension counter circuit.
JP9916976A 1976-08-18 1976-08-18 Key telephone set Pending JPS5324207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9916976A JPS5324207A (en) 1976-08-18 1976-08-18 Key telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9916976A JPS5324207A (en) 1976-08-18 1976-08-18 Key telephone set

Publications (1)

Publication Number Publication Date
JPS5324207A true JPS5324207A (en) 1978-03-06

Family

ID=14240137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9916976A Pending JPS5324207A (en) 1976-08-18 1976-08-18 Key telephone set

Country Status (1)

Country Link
JP (1) JPS5324207A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282005A (en) * 1975-12-29 1977-07-08 Nec Corp Busy processing system in automatic exchange

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282005A (en) * 1975-12-29 1977-07-08 Nec Corp Busy processing system in automatic exchange

Similar Documents

Publication Publication Date Title
JPS5422704A (en) Cordless telephone system
JPS5318302A (en) Cordless telephone unit
JPS5313806A (en) Telephone extension system
JPS5283102A (en) Abbreviated dialing unit
JPS5324207A (en) Key telephone set
JPS5333509A (en) Offering in-trunk
JPS51128208A (en) Idling power saving
JPS523319A (en) Crosstalk reduction system
JPS5216106A (en) Telephone call unit
JPS5347211A (en) Frequency metering system
JPS5234601A (en) Calling circuit
JPS51144504A (en) Telephone set
JPS5394805A (en) Communication terminal equipment
JPS526007A (en) Detection system of the off-hook stgnal of a called subscriber
JPS5423304A (en) Cordless telephone system
JPS51144503A (en) Telephone set
JPS53146505A (en) Power circuit for cordless telephone set
JPS5355905A (en) Automatic dialing system
JPS53132911A (en) Telephone set
JPS51132910A (en) Call back methd of an electrode switchboard
JPS5391605A (en) Telephone set
JPS5261903A (en) Telephone no. deigita lindicator
JPS51121203A (en) Telephone circuits
JPS5390704A (en) Incoming response system
JPS53101205A (en) Circuit extension method for key telephone