FR2420255A1 - Discriminateur telephonique - Google Patents

Discriminateur telephonique

Info

Publication number
FR2420255A1
FR2420255A1 FR7807574A FR7807574A FR2420255A1 FR 2420255 A1 FR2420255 A1 FR 2420255A1 FR 7807574 A FR7807574 A FR 7807574A FR 7807574 A FR7807574 A FR 7807574A FR 2420255 A1 FR2420255 A1 FR 2420255A1
Authority
FR
France
Prior art keywords
same
relay
telephone system
prefix
numbers received
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.)
Withdrawn
Application number
FR7807574A
Other languages
English (en)
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.)
MALKA JACQUES
Original Assignee
MALKA JACQUES
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 MALKA JACQUES filed Critical MALKA JACQUES
Priority to FR7807574A priority Critical patent/FR2420255A1/fr
Publication of FR2420255A1 publication Critical patent/FR2420255A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Dispositif permettant de discriminer à volonté les communications téléphoniques nationales, internationales ainsi que les communications teléphoniques avec les banlieues. Il comprend une série de relais, un bloc de combinaisons, et une carte conjonctable supportant les composants électriques. L'invention peut être adaptée à tous les systèmes téléphoniques existant.
FR7807574A 1978-03-16 1978-03-16 Discriminateur telephonique Withdrawn FR2420255A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7807574A FR2420255A1 (fr) 1978-03-16 1978-03-16 Discriminateur telephonique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807574A FR2420255A1 (fr) 1978-03-16 1978-03-16 Discriminateur telephonique

Publications (1)

Publication Number Publication Date
FR2420255A1 true FR2420255A1 (fr) 1979-10-12

Family

ID=9205868

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807574A Withdrawn FR2420255A1 (fr) 1978-03-16 1978-03-16 Discriminateur telephonique

Country Status (1)

Country Link
FR (1) FR2420255A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510847A1 (fr) * 1981-07-29 1983-02-04 Malka Jacques Discriminateur electronique personnalise interdisant les communications telephoniques a prefixes de un, deux et trois chiffres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510847A1 (fr) * 1981-07-29 1983-02-04 Malka Jacques Discriminateur electronique personnalise interdisant les communications telephoniques a prefixes de un, deux et trois chiffres

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Legal Events

Date Code Title Description
ST Notification of lapse