JPS5297609A - Abnormal traffic detection system - Google Patents

Abnormal traffic detection system

Info

Publication number
JPS5297609A
JPS5297609A JP1418376A JP1418376A JPS5297609A JP S5297609 A JPS5297609 A JP S5297609A JP 1418376 A JP1418376 A JP 1418376A JP 1418376 A JP1418376 A JP 1418376A JP S5297609 A JPS5297609 A JP S5297609A
Authority
JP
Japan
Prior art keywords
abnormal traffic
detection system
traffic detection
reception
measuring
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
JP1418376A
Other languages
Japanese (ja)
Other versions
JPS5642186B2 (en
Inventor
Takaaki Sato
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 JP1418376A priority Critical patent/JPS5297609A/en
Publication of JPS5297609A publication Critical patent/JPS5297609A/en
Publication of JPS5642186B2 publication Critical patent/JPS5642186B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/22Arrangements for supervision, monitoring or testing
    • H04M3/36Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To realize early detection of abnormal traffic by measuring with a fixed cycle the reception call completion rate of subscriber line switchboard to reception system unit.
JP1418376A 1976-02-10 1976-02-10 Abnormal traffic detection system Granted JPS5297609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1418376A JPS5297609A (en) 1976-02-10 1976-02-10 Abnormal traffic detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1418376A JPS5297609A (en) 1976-02-10 1976-02-10 Abnormal traffic detection system

Publications (2)

Publication Number Publication Date
JPS5297609A true JPS5297609A (en) 1977-08-16
JPS5642186B2 JPS5642186B2 (en) 1981-10-02

Family

ID=11854012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1418376A Granted JPS5297609A (en) 1976-02-10 1976-02-10 Abnormal traffic detection system

Country Status (1)

Country Link
JP (1) JPS5297609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101550A (en) * 1981-12-14 1983-06-16 Nippon Telegr & Teleph Corp <Ntt> Traffic controlling system for service overall exchange

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101550A (en) * 1981-12-14 1983-06-16 Nippon Telegr & Teleph Corp <Ntt> Traffic controlling system for service overall exchange
JPH0155620B2 (en) * 1981-12-14 1989-11-27 Nippon Telegraph & Telephone

Also Published As

Publication number Publication date
JPS5642186B2 (en) 1981-10-02

Similar Documents

Publication Publication Date Title
HK44077A (en) Method for frequency-recognition in selective signal receivers for use in telecommunication, particularly telephone systems
HK44177A (en) Selective signal receiver for use in telecommunication, particularly telephone systems
JPS5297609A (en) Abnormal traffic detection system
JPS54812A (en) Repeating system
JPS5386102A (en) Selective exchange system
JPS53128207A (en) Call tracing system for telephone
JPS5436107A (en) Registration system for incoming call restriction
JPS5362404A (en) Incoming call charging system
JPS52132708A (en) Line monitor system
JPS5276805A (en) Telephone service system
JPS5296803A (en) Telephone unit
JPS52134308A (en) Incoming call transfer system
JPS52137906A (en) Direct dial network control system
JPS5387608A (en) Incoming detector circuit of telephone set additional unit
JPS5397309A (en) Abbreviated dialing system
JPS5399707A (en) Originating number display system
ZA742577B (en) Telephone system with ringing path detector
JPS51140422A (en) System for monitoring repeating line
JPS549516A (en) Fault reception system
JPS5384511A (en) Line concentrator
JPS53118902A (en) Selective inter-call unit
JPS52144907A (en) Loss probability calculating system
JPS52140212A (en) Observation system for call number and charging pulse number
JPS5397311A (en) Continuity test system for subscriber circuit
JPS5370706A (en) Language aiding system of terminating subscriber