SE381545B - Telefonanleggning med styrd upptagensignalering - Google Patents

Telefonanleggning med styrd upptagensignalering

Info

Publication number
SE381545B
SE381545B SE7217206A SE1720672A SE381545B SE 381545 B SE381545 B SE 381545B SE 7217206 A SE7217206 A SE 7217206A SE 1720672 A SE1720672 A SE 1720672A SE 381545 B SE381545 B SE 381545B
Authority
SE
Sweden
Prior art keywords
telephone system
controlled recording
recording signaling
signaling
controlled
Prior art date
Application number
SE7217206A
Other languages
English (en)
Inventor
Clair Kilby J St
Original Assignee
Clair Kilby J St
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 Clair Kilby J St filed Critical Clair Kilby J St
Publication of SE381545B publication Critical patent/SE381545B/sv

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
  • Alarm Systems (AREA)
SE7217206A 1971-12-30 1972-12-29 Telefonanleggning med styrd upptagensignalering SE381545B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21426871A 1971-12-30 1971-12-30

Publications (1)

Publication Number Publication Date
SE381545B true SE381545B (sv) 1975-12-08

Family

ID=22798432

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7217206A SE381545B (sv) 1971-12-30 1972-12-29 Telefonanleggning med styrd upptagensignalering

Country Status (9)

Country Link
US (1) US3777067A (sv)
JP (1) JPS4875106A (sv)
BE (1) BE791694A (sv)
CA (1) CA962388A (sv)
FR (1) FR2167142A5 (sv)
GB (1) GB1409819A (sv)
IT (1) IT973990B (sv)
NL (1) NL7216129A (sv)
SE (1) SE381545B (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027109A (en) * 1975-06-27 1977-05-31 Smith Lloyd M Telephone call diverting system
US3997735A (en) * 1975-09-24 1976-12-14 Bell Telephone Laboratories, Incorporated Telephone station make-busy circuit
FR2556908B1 (fr) * 1983-12-15 1986-11-21 Regnier Marc Andre Dispositif electronique anti-cambriolage simulant une presence telephonique en l'absence de l'abonne
FR2574607A2 (fr) * 1983-12-15 1986-06-13 Regnier Marc Andre Dispositif electronique anti-cambriolage simulant une presence telephonique en l'absence de l'abonne
FR2564268A1 (fr) * 1984-05-11 1985-11-15 Paule Yves Procedes et dispositifs pour eviter temporairement de recevoir des appels sur un appareil telephonique
JPS61189755A (ja) * 1985-02-18 1986-08-23 Hashimoto Corp 自動的に待機状態を形成する留守番電話装置
US5544241A (en) * 1995-06-27 1996-08-06 Andrew S. Dibner Telephone ring detector
US6580789B1 (en) * 2000-01-18 2003-06-17 Immix Telecom, Inc. Automated prefix dialing system
US20030097659A1 (en) * 2001-11-16 2003-05-22 Goldman Phillip Y. Interrupting the output of media content in response to an event

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126453A (en) * 1964-03-24 Means for altering telephone operation
DE624996C (de) * 1930-03-17 1936-02-01 Rudolf Max Braun Ing Rueckmelder fuer Telephonstellen
US2481840A (en) * 1945-06-28 1949-09-13 Automatic Elect Lab Timer for switching from signaling device to the subscriber's ringer after selectable predetermined time
DE1186909B (de) * 1957-11-21 1965-02-11 Hiroye Muramatsu Schaltungsanordnung fuer Fernsprechteilnehmeranlagen
FR1283074A (fr) * 1961-03-08 1962-01-27 Installation téléphonique d'abonné
US3248481A (en) * 1962-06-06 1966-04-26 Walter F Grote Telephone answering device
US3226489A (en) * 1962-10-24 1965-12-28 Russel J Grambsch Communications control system
US3673339A (en) * 1970-07-22 1972-06-27 Bell Telephone Labor Inc Artificial line busy circuit

Also Published As

Publication number Publication date
IT973990B (it) 1974-06-10
FR2167142A5 (sv) 1973-08-17
JPS4875106A (sv) 1973-10-09
CA962388A (en) 1975-02-04
GB1409819A (en) 1975-10-15
DE2262469A1 (de) 1973-07-12
DE2262469B2 (de) 1976-07-22
US3777067A (en) 1973-12-04
BE791694A (fr) 1973-03-16
NL7216129A (sv) 1973-07-03

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