CH403872A - Device for limiting telephone calls - Google Patents

Device for limiting telephone calls

Info

Publication number
CH403872A
CH403872A CH963763A CH963763A CH403872A CH 403872 A CH403872 A CH 403872A CH 963763 A CH963763 A CH 963763A CH 963763 A CH963763 A CH 963763A CH 403872 A CH403872 A CH 403872A
Authority
CH
Switzerland
Prior art keywords
telephone calls
limiting telephone
limiting
calls
telephone
Prior art date
Application number
CH963763A
Other languages
French (fr)
Inventor
Edmond Moricot Gerard Gaston
Original Assignee
Edmond Moricot Gerard Gaston
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 Edmond Moricot Gerard Gaston filed Critical Edmond Moricot Gerard Gaston
Publication of CH403872A publication Critical patent/CH403872A/en

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)
  • Telephone Set Structure (AREA)
CH963763A 1962-08-28 1963-08-05 Device for limiting telephone calls CH403872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR907986A FR1332465A (en) 1962-08-28 1962-08-28 Device for limiting telephone calls and telephones fitted with this device or similar device

Publications (1)

Publication Number Publication Date
CH403872A true CH403872A (en) 1965-12-15

Family

ID=8785859

Family Applications (1)

Application Number Title Priority Date Filing Date
CH963763A CH403872A (en) 1962-08-28 1963-08-05 Device for limiting telephone calls

Country Status (5)

Country Link
BE (1) BE636631A (en)
CH (1) CH403872A (en)
DE (1) DE1206486B (en)
FR (1) FR1332465A (en)
GB (1) GB1018274A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268215B (en) * 1965-11-26 1968-05-16 Christos Stathacopoulos Device on a telephone set for locking the set for self-dialing calls
GB2124453A (en) * 1982-07-30 1984-02-15 Shamshad Mohammed Khan Telephone monitoring device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1749067U (en) * 1957-05-17 1957-07-25 Hagenuk Vorm Neufeldt & Kuehnk STEP-BY-STEP CONTROL UNIT, PREFERRED FOR BARRIER NUMBER SWITCHES OF COIN TELEPHONES.

Also Published As

Publication number Publication date
FR1332465A (en) 1963-07-12
BE636631A (en)
GB1018274A (en) 1966-01-26
DE1206486B (en) 1965-12-09

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