JPS56140749A - Call protecting system - Google Patents

Call protecting system

Info

Publication number
JPS56140749A
JPS56140749A JP4418880A JP4418880A JPS56140749A JP S56140749 A JPS56140749 A JP S56140749A JP 4418880 A JP4418880 A JP 4418880A JP 4418880 A JP4418880 A JP 4418880A JP S56140749 A JPS56140749 A JP S56140749A
Authority
JP
Japan
Prior art keywords
subscriber
interruption
call
ccb1
stored
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
JP4418880A
Other languages
English (en)
Other versions
JPS6317268B2 (ja
Inventor
Jun Shimada
Eiji Katayama
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 JP4418880A priority Critical patent/JPS56140749A/ja
Publication of JPS56140749A publication Critical patent/JPS56140749A/ja
Publication of JPS6317268B2 publication Critical patent/JPS6317268B2/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)
JP4418880A 1980-04-04 1980-04-04 Call protecting system Granted JPS56140749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4418880A JPS56140749A (en) 1980-04-04 1980-04-04 Call protecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4418880A JPS56140749A (en) 1980-04-04 1980-04-04 Call protecting system

Publications (2)

Publication Number Publication Date
JPS56140749A true JPS56140749A (en) 1981-11-04
JPS6317268B2 JPS6317268B2 (ja) 1988-04-13

Family

ID=12684590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4418880A Granted JPS56140749A (en) 1980-04-04 1980-04-04 Call protecting system

Country Status (1)

Country Link
JP (1) JPS56140749A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787658A (en) * 1980-11-20 1982-06-01 Nec Corp Interrupting connection restricting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787658A (en) * 1980-11-20 1982-06-01 Nec Corp Interrupting connection restricting system

Also Published As

Publication number Publication date
JPS6317268B2 (ja) 1988-04-13

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