JPS5899054A - 通話中着信サ−ビス方式 - Google Patents

通話中着信サ−ビス方式

Info

Publication number
JPS5899054A
JPS5899054A JP19798181A JP19798181A JPS5899054A JP S5899054 A JPS5899054 A JP S5899054A JP 19798181 A JP19798181 A JP 19798181A JP 19798181 A JP19798181 A JP 19798181A JP S5899054 A JPS5899054 A JP S5899054A
Authority
JP
Japan
Prior art keywords
called party
busy
caller
call
tone
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
JP19798181A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0131749B2 (enExample
Inventor
Hiroo Yamada
山田　啓夫
Shuhei Sakakibara
修平 榊原
Kazuo Enosawa
江野沢　和夫
Katsumichi Senba
仙波　健道
Isao Motoi
元井　勇雄
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.)
NEC Corp
Japan Broadcasting Corp
Original Assignee
NEC Corp
Nippon Hoso Kyokai NHK
Nippon Electric Co Ltd
Japan Broadcasting 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 NEC Corp, Nippon Hoso Kyokai NHK, Nippon Electric Co Ltd, Japan Broadcasting Corp filed Critical NEC Corp
Priority to JP19798181A priority Critical patent/JPS5899054A/ja
Publication of JPS5899054A publication Critical patent/JPS5899054A/ja
Publication of JPH0131749B2 publication Critical patent/JPH0131749B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/20—Automatic or semi-automatic exchanges with means for interrupting existing connections; with means for breaking-in on conversations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP19798181A 1981-12-08 1981-12-08 通話中着信サ−ビス方式 Granted JPS5899054A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19798181A JPS5899054A (ja) 1981-12-08 1981-12-08 通話中着信サ−ビス方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19798181A JPS5899054A (ja) 1981-12-08 1981-12-08 通話中着信サ−ビス方式

Publications (2)

Publication Number Publication Date
JPS5899054A true JPS5899054A (ja) 1983-06-13
JPH0131749B2 JPH0131749B2 (enExample) 1989-06-27

Family

ID=16383524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19798181A Granted JPS5899054A (ja) 1981-12-08 1981-12-08 通話中着信サ−ビス方式

Country Status (1)

Country Link
JP (1) JPS5899054A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5982754A (en) * 1996-08-20 1999-11-09 Fujitsu Limited Method of charging for additional services, and additional-service communication system
US6122358A (en) * 1996-09-11 2000-09-19 Fujitsu Limited Operator connection control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123266A (en) * 1979-03-16 1980-09-22 Nec Corp Service number discrimination system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55123266A (en) * 1979-03-16 1980-09-22 Nec Corp Service number discrimination system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5982754A (en) * 1996-08-20 1999-11-09 Fujitsu Limited Method of charging for additional services, and additional-service communication system
US6122358A (en) * 1996-09-11 2000-09-19 Fujitsu Limited Operator connection control method

Also Published As

Publication number Publication date
JPH0131749B2 (enExample) 1989-06-27

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