JPS6339198B2 - - Google Patents

Info

Publication number
JPS6339198B2
JPS6339198B2 JP18351180A JP18351180A JPS6339198B2 JP S6339198 B2 JPS6339198 B2 JP S6339198B2 JP 18351180 A JP18351180 A JP 18351180A JP 18351180 A JP18351180 A JP 18351180A JP S6339198 B2 JPS6339198 B2 JP S6339198B2
Authority
JP
Japan
Prior art keywords
telephone
extension
call
line
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
JP18351180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57107666A (en
Inventor
Katsuo Suzuki
Toyoji Matsuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18351180A priority Critical patent/JPS57107666A/ja
Publication of JPS57107666A publication Critical patent/JPS57107666A/ja
Publication of JPS6339198B2 publication Critical patent/JPS6339198B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/002Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005Arrangements 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)
JP18351180A 1980-12-24 1980-12-24 Extension button callout control system for button telephone set Granted JPS57107666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18351180A JPS57107666A (en) 1980-12-24 1980-12-24 Extension button callout control system for button telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18351180A JPS57107666A (en) 1980-12-24 1980-12-24 Extension button callout control system for button telephone set

Publications (2)

Publication Number Publication Date
JPS57107666A JPS57107666A (en) 1982-07-05
JPS6339198B2 true JPS6339198B2 (enrdf_load_stackoverflow) 1988-08-03

Family

ID=16137113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18351180A Granted JPS57107666A (en) 1980-12-24 1980-12-24 Extension button callout control system for button telephone set

Country Status (1)

Country Link
JP (1) JPS57107666A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07206007A (ja) * 1994-01-14 1995-08-08 Ube Package Kk 梱包用具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07206007A (ja) * 1994-01-14 1995-08-08 Ube Package Kk 梱包用具

Also Published As

Publication number Publication date
JPS57107666A (en) 1982-07-05

Similar Documents

Publication Publication Date Title
US4497980A (en) Handsfree circuit for telephone instrument
CA1110373A (en) Hands-free answer arrangement on intercom for key telephone system
JPS63248269A (ja) 電話機
US4588864A (en) Small key telephone system
JPS6339198B2 (enrdf_load_stackoverflow)
US4293740A (en) Hands free answer intercom
JPS6165695A (ja) ボタン電話装置
KR910003946B1 (ko) 인터폰 시스템의 상호국선 전환회로
KR920004615Y1 (ko) 다기능 인터폰
JPS62200852A (ja) ボタン電話装置の停電電話機
JPS6328554B2 (enrdf_load_stackoverflow)
JPH0358223B2 (enrdf_load_stackoverflow)
JP2793202B2 (ja) 電話機
JPH0549068A (ja) ボタン電話機用ドアホン制御回路
JPH0438621Y2 (enrdf_load_stackoverflow)
JPH01251945A (ja) 留守番電話装置
JP3295459B2 (ja) 電話機
JPS61240742A (ja) 電話機付属装置
JPH0316818B2 (enrdf_load_stackoverflow)
JP2577816B2 (ja) 電話機システム
JPS6338355A (ja) 複数選択信号連続発信機能付多機能電話機
JPS63266950A (ja) 拡声電話機
JPH04266252A (ja) ボタン電話機用ドアホン子機
JPS60223284A (ja) 可聴音漏れ防止回路
JPS63221756A (ja) モデム付き電話機の制御方法