JPS5630353A - Communication system with engaged or absent subscriber - Google Patents

Communication system with engaged or absent subscriber

Info

Publication number
JPS5630353A
JPS5630353A JP10640379A JP10640379A JPS5630353A JP S5630353 A JPS5630353 A JP S5630353A JP 10640379 A JP10640379 A JP 10640379A JP 10640379 A JP10640379 A JP 10640379A JP S5630353 A JPS5630353 A JP S5630353A
Authority
JP
Japan
Prior art keywords
subscriber
terminal
picture
engaged
absence
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
JP10640379A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6134708B2 (enrdf_load_stackoverflow
Inventor
Yutaka Omori
Shoichi Kajiwara
Toshihiko Nakayama
Hirotaka Ariyama
Yosuke Sakai
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10640379A priority Critical patent/JPS5630353A/ja
Publication of JPS5630353A publication Critical patent/JPS5630353A/ja
Publication of JPS6134708B2 publication Critical patent/JPS6134708B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
JP10640379A 1979-08-21 1979-08-21 Communication system with engaged or absent subscriber Granted JPS5630353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10640379A JPS5630353A (en) 1979-08-21 1979-08-21 Communication system with engaged or absent subscriber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10640379A JPS5630353A (en) 1979-08-21 1979-08-21 Communication system with engaged or absent subscriber

Publications (2)

Publication Number Publication Date
JPS5630353A true JPS5630353A (en) 1981-03-26
JPS6134708B2 JPS6134708B2 (enrdf_load_stackoverflow) 1986-08-08

Family

ID=14432710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10640379A Granted JPS5630353A (en) 1979-08-21 1979-08-21 Communication system with engaged or absent subscriber

Country Status (1)

Country Link
JP (1) JPS5630353A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859662A (ja) * 1981-10-06 1983-04-08 Oki Electric Ind Co Ltd 電話サ−ビス開始停止方式
JPS58198952A (ja) * 1982-05-17 1983-11-19 Nippon Telegr & Teleph Corp <Ntt> 通信中サ−ビス用信号方式

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01178056U (enrdf_load_stackoverflow) * 1988-06-01 1989-12-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859662A (ja) * 1981-10-06 1983-04-08 Oki Electric Ind Co Ltd 電話サ−ビス開始停止方式
JPS58198952A (ja) * 1982-05-17 1983-11-19 Nippon Telegr & Teleph Corp <Ntt> 通信中サ−ビス用信号方式

Also Published As

Publication number Publication date
JPS6134708B2 (enrdf_load_stackoverflow) 1986-08-08

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