JPS55136761A - Malicious call detecting system - Google Patents

Malicious call detecting system

Info

Publication number
JPS55136761A
JPS55136761A JP4409179A JP4409179A JPS55136761A JP S55136761 A JPS55136761 A JP S55136761A JP 4409179 A JP4409179 A JP 4409179A JP 4409179 A JP4409179 A JP 4409179A JP S55136761 A JPS55136761 A JP S55136761A
Authority
JP
Japan
Prior art keywords
sub1
telephone set
ogt
station
malicious
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
JP4409179A
Other languages
Japanese (ja)
Other versions
JPS6360584B2 (en
Inventor
Michitaka Noda
Yuichi Chiba
Yukinobu Chiguchi
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 JP4409179A priority Critical patent/JPS55136761A/en
Publication of JPS55136761A publication Critical patent/JPS55136761A/en
Publication of JPS6360584B2 publication Critical patent/JPS6360584B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Abstract

PURPOSE:To enable to know the telephone number of calling telephone set, by registering the number of telephone set where the incoming of malicious call is expected and storing the bus information relating to the outgoing trunk at the transmission station when this number is received. CONSTITUTION:The malicious call transmitted from the telephone set SUB1 at the station A reaches the incoming trunk ICT at the station B via the DP line DPL from the communication network NWa and outgoing trunk OGT, and is connected to called telephone set SUB2 via the communication line network NWb. Further, the number of SUB2 is registered and the call connection is party-release. When SUB1 is ON-hook, the communication line bus in the communication network NWa reaching SUB1-OGT is released, and SUB1 is enabled for recalling, but the outgoing trunk OGT is held, and the information of the telephone set SUB1 of malicious caller is left in the temporary memory unit TM in the main memory unit MM, and the number of SUB1 can be known by reading in the content.
JP4409179A 1979-04-11 1979-04-11 Malicious call detecting system Granted JPS55136761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4409179A JPS55136761A (en) 1979-04-11 1979-04-11 Malicious call detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4409179A JPS55136761A (en) 1979-04-11 1979-04-11 Malicious call detecting system

Publications (2)

Publication Number Publication Date
JPS55136761A true JPS55136761A (en) 1980-10-24
JPS6360584B2 JPS6360584B2 (en) 1988-11-24

Family

ID=12681942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4409179A Granted JPS55136761A (en) 1979-04-11 1979-04-11 Malicious call detecting system

Country Status (1)

Country Link
JP (1) JPS55136761A (en)

Also Published As

Publication number Publication date
JPS6360584B2 (en) 1988-11-24

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