JPH0114757B2 - - Google Patents

Info

Publication number
JPH0114757B2
JPH0114757B2 JP55012013A JP1201380A JPH0114757B2 JP H0114757 B2 JPH0114757 B2 JP H0114757B2 JP 55012013 A JP55012013 A JP 55012013A JP 1201380 A JP1201380 A JP 1201380A JP H0114757 B2 JPH0114757 B2 JP H0114757B2
Authority
JP
Japan
Prior art keywords
line
hold
display
circuit
button
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.)
Expired
Application number
JP55012013A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56110376A (en
Inventor
Yoshiichi Sano
Taiji Sato
Shinichi Shibata
Takeshi Horiuchi
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP1201380A priority Critical patent/JPS56110376A/ja
Publication of JPS56110376A publication Critical patent/JPS56110376A/ja
Publication of JPH0114757B2 publication Critical patent/JPH0114757B2/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
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP1201380A 1980-02-05 1980-02-05 Holding state display system of key telephone set Granted JPS56110376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1201380A JPS56110376A (en) 1980-02-05 1980-02-05 Holding state display system of key telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1201380A JPS56110376A (en) 1980-02-05 1980-02-05 Holding state display system of key telephone set

Publications (2)

Publication Number Publication Date
JPS56110376A JPS56110376A (en) 1981-09-01
JPH0114757B2 true JPH0114757B2 (enrdf_load_stackoverflow) 1989-03-14

Family

ID=11793702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1201380A Granted JPS56110376A (en) 1980-02-05 1980-02-05 Holding state display system of key telephone set

Country Status (1)

Country Link
JP (1) JPS56110376A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1188831A (en) * 1982-12-14 1985-06-11 Mitel Corporation Telephone indicator
JPH02262794A (ja) * 1989-04-03 1990-10-25 Canon Inc ボタン電話装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US26722A (en) * 1860-01-03 James tucker
JPS5242062A (en) * 1975-09-30 1977-04-01 Fujitsu Ltd Timing circuit
JPS5394806A (en) * 1977-01-31 1978-08-19 Nec Corp Alarm display circuit for long-time holding of key telephone set
JPS543503A (en) * 1977-06-10 1979-01-11 Sony Corp Muting device of record players

Also Published As

Publication number Publication date
JPS56110376A (en) 1981-09-01

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