JPS648757A - Telephone controller - Google Patents

Telephone controller

Info

Publication number
JPS648757A
JPS648757A JP16247287A JP16247287A JPS648757A JP S648757 A JPS648757 A JP S648757A JP 16247287 A JP16247287 A JP 16247287A JP 16247287 A JP16247287 A JP 16247287A JP S648757 A JPS648757 A JP S648757A
Authority
JP
Japan
Prior art keywords
line
extension telephone
specific
line wire
speech path
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
JP16247287A
Other languages
English (en)
Other versions
JP2710121B2 (ja
Inventor
Kuniaki Otsuka
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62162472A priority Critical patent/JP2710121B2/ja
Publication of JPS648757A publication Critical patent/JPS648757A/ja
Application granted granted Critical
Publication of JP2710121B2 publication Critical patent/JP2710121B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP62162472A 1987-07-01 1987-07-01 外線使用制限装置 Expired - Fee Related JP2710121B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62162472A JP2710121B2 (ja) 1987-07-01 1987-07-01 外線使用制限装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62162472A JP2710121B2 (ja) 1987-07-01 1987-07-01 外線使用制限装置

Publications (2)

Publication Number Publication Date
JPS648757A true JPS648757A (en) 1989-01-12
JP2710121B2 JP2710121B2 (ja) 1998-02-10

Family

ID=15755276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62162472A Expired - Fee Related JP2710121B2 (ja) 1987-07-01 1987-07-01 外線使用制限装置

Country Status (1)

Country Link
JP (1) JP2710121B2 (ja)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492411A (ja) * 1972-04-19 1974-01-10
JPS568985A (en) * 1979-07-04 1981-01-29 Tamura Electric Works Ltd Circuit reservation system of key telephone set
JPS568986A (en) * 1979-07-04 1981-01-29 Tamura Electric Works Ltd Circuit reservation system of key telephone set
JPS6253555A (ja) * 1985-09-03 1987-03-09 Toshiba Corp 構内電話交換機
JPS62140596A (ja) * 1985-12-16 1987-06-24 Tamura Electric Works Ltd ボタン電話装置
JPS63187899A (ja) * 1987-01-30 1988-08-03 Toshiba Corp 外線予約方式

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492411A (ja) * 1972-04-19 1974-01-10
JPS568985A (en) * 1979-07-04 1981-01-29 Tamura Electric Works Ltd Circuit reservation system of key telephone set
JPS568986A (en) * 1979-07-04 1981-01-29 Tamura Electric Works Ltd Circuit reservation system of key telephone set
JPS6253555A (ja) * 1985-09-03 1987-03-09 Toshiba Corp 構内電話交換機
JPS62140596A (ja) * 1985-12-16 1987-06-24 Tamura Electric Works Ltd ボタン電話装置
JPS63187899A (ja) * 1987-01-30 1988-08-03 Toshiba Corp 外線予約方式

Also Published As

Publication number Publication date
JP2710121B2 (ja) 1998-02-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees