BE801478A - Systeme de reponse telephonique - Google Patents

Systeme de reponse telephonique

Info

Publication number
BE801478A
BE801478A BE132756A BE132756A BE801478A BE 801478 A BE801478 A BE 801478A BE 132756 A BE132756 A BE 132756A BE 132756 A BE132756 A BE 132756A BE 801478 A BE801478 A BE 801478A
Authority
BE
Belgium
Prior art keywords
answering system
telephone answering
telephone
answering
Prior art date
Application number
BE132756A
Other languages
English (en)
Original Assignee
Kilby Jack St Clair
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 Kilby Jack St Clair filed Critical Kilby Jack St Clair
Publication of BE801478A publication Critical patent/BE801478A/fr

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
    • H04M1/663—Preventing unauthorised calls to a telephone set
    • H04M1/665—Preventing unauthorised calls to a telephone set by checking the validity of a code

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Prepayment Telephone Systems (AREA)
BE132756A 1972-06-26 1973-06-26 Systeme de reponse telephonique BE801478A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26649072A 1972-06-26 1972-06-26

Publications (1)

Publication Number Publication Date
BE801478A true BE801478A (fr) 1973-10-15

Family

ID=23014788

Family Applications (1)

Application Number Title Priority Date Filing Date
BE132756A BE801478A (fr) 1972-06-26 1973-06-26 Systeme de reponse telephonique

Country Status (8)

Country Link
JP (1) JPS4952506A (fr)
BE (1) BE801478A (fr)
CA (1) CA984983A (fr)
DE (1) DE2332244C2 (fr)
GB (1) GB1432983A (fr)
IT (1) IT986215B (fr)
NL (1) NL7308862A (fr)
SE (1) SE382293B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5399802A (en) * 1977-02-14 1978-08-31 Nippon Telegr & Teleph Corp <Ntt> Specific subscriber calling equipment of automatic answering telephone set
JPS53132911A (en) * 1977-04-26 1978-11-20 Iwatsu Electric Co Ltd Telephone set
JPS53146511A (en) * 1977-05-26 1978-12-20 Toyo Communication Equip Caller identifying telephone set
JPS5648160U (fr) * 1980-09-04 1981-04-28
DE3405014A1 (de) * 1984-02-13 1985-08-14 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren fuer den betrieb eines telefon-anrufbeantworters
GB2183125B (en) * 1985-10-10 1989-11-29 Microcompass Ltd Improvements to communication apparatus
DE19511622A1 (de) 1995-03-30 1996-10-02 Michael Wolf Türrufbeantworter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1283074A (fr) * 1961-03-08 1962-01-27 Installation téléphonique d'abonné
DE1437906B2 (de) * 1965-04-17 1970-03-26 Blessing, Dipl.-Kfm. Dr. Gerhard, 7336 Uhingen Schaltungsanordnung für eine Zusatzeinrichtung an Fernsprechteilnehmerstellen
JPS4831810A (fr) * 1971-08-30 1973-04-26

Also Published As

Publication number Publication date
SE382293B (sv) 1976-01-19
DE2332244A1 (de) 1974-01-17
JPS4952506A (fr) 1974-05-22
IT986215B (it) 1975-01-20
CA984983A (en) 1976-03-02
DE2332244C2 (de) 1984-04-05
GB1432983A (en) 1976-04-22
NL7308862A (fr) 1973-12-28

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: J. ST CLAIR KILBY

Effective date: 19880630