BG37515A1 - Device for limiting telephone dial selection - Google Patents

Device for limiting telephone dial selection

Info

Publication number
BG37515A1
BG37515A1 BG5955583A BG5955583A BG37515A1 BG 37515 A1 BG37515 A1 BG 37515A1 BG 5955583 A BG5955583 A BG 5955583A BG 5955583 A BG5955583 A BG 5955583A BG 37515 A1 BG37515 A1 BG 37515A1
Authority
BG
Bulgaria
Prior art keywords
telephone dial
dial selection
limiting telephone
limiting
selection
Prior art date
Application number
BG5955583A
Other languages
English (en)
Inventor
Popov
Original Assignee
Popov
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 Popov filed Critical Popov
Priority to BG5955583A priority Critical patent/BG37515A1/xx
Priority to DD25965884A priority patent/DD252109A3/de
Priority to RO84113465A priority patent/RO88643A/ro
Priority to HU42084A priority patent/HU189034B/hu
Priority to DE19843403304 priority patent/DE3403304A1/de
Priority to PL24602084A priority patent/PL142207B1/pl
Priority to CS86484A priority patent/CS256919B1/cs
Publication of BG37515A1 publication Critical patent/BG37515A1/xx

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 Function (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
BG5955583A 1983-02-02 1983-02-02 Device for limiting telephone dial selection BG37515A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BG5955583A BG37515A1 (en) 1983-02-02 1983-02-02 Device for limiting telephone dial selection
DD25965884A DD252109A3 (de) 1983-02-02 1984-01-27 Einrichtung fuer die nummernwahlbegrenzung eines fernsprechapparats
RO84113465A RO88643A (ro) 1983-02-02 1984-01-31 Instalatie pentru limitarea selectiei de numerare a unui aparat telefonic
HU42084A HU189034B (en) 1983-02-02 1984-01-31 Device for limiting selection of number to telephone sets
DE19843403304 DE3403304A1 (de) 1983-02-02 1984-01-31 Einrichtung zur nummernwahlbegrenzung bei fernsprechapparaten
PL24602084A PL142207B1 (en) 1983-02-02 1984-02-02 Apparatus for limitation of possibility of dialling of telephone set
CS86484A CS256919B1 (en) 1983-02-02 1984-02-07 Device for dialling's limitation with telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG5955583A BG37515A1 (en) 1983-02-02 1983-02-02 Device for limiting telephone dial selection

Publications (1)

Publication Number Publication Date
BG37515A1 true BG37515A1 (en) 1985-06-14

Family

ID=3911702

Family Applications (1)

Application Number Title Priority Date Filing Date
BG5955583A BG37515A1 (en) 1983-02-02 1983-02-02 Device for limiting telephone dial selection

Country Status (7)

Country Link
BG (1) BG37515A1 (de)
CS (1) CS256919B1 (de)
DD (1) DD252109A3 (de)
DE (1) DE3403304A1 (de)
HU (1) HU189034B (de)
PL (1) PL142207B1 (de)
RO (1) RO88643A (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268215B (de) * 1965-11-26 1968-05-16 Christos Stathacopoulos Vorrichtung an einem Fernsprechapparat zum Sperren des Apparates fuer Selbstwaehlferngespraeche
DE2341246A1 (de) * 1973-08-16 1975-02-20 Hagenuk Neufeldt Kuhnke Gmbh Elektronische sperreinrichtung fuer nummernschalterwahl zur verhinderung der wahl unerwuenschter waehlziffern
SE7411340L (de) * 1974-01-19 1975-07-21 Masayuki Nagakura
DE3227763A1 (de) * 1982-07-24 1984-02-02 Krone Gmbh, 1000 Berlin Einrichtung zur wahlweisen freigabe oder sperrung einer fernwahl-rufnummer

Also Published As

Publication number Publication date
CS256919B1 (en) 1988-04-15
HU189034B (en) 1986-06-30
PL246020A1 (en) 1984-11-08
DD252109A3 (de) 1987-12-09
DE3403304A1 (de) 1984-08-16
HUT36310A (en) 1985-08-28
PL142207B1 (en) 1987-09-30
RO88643A (ro) 1986-02-28

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