FR2524743A1 - Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques - Google Patents

Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques Download PDF

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Publication number
FR2524743A1
FR2524743A1 FR8205668A FR8205668A FR2524743A1 FR 2524743 A1 FR2524743 A1 FR 2524743A1 FR 8205668 A FR8205668 A FR 8205668A FR 8205668 A FR8205668 A FR 8205668A FR 2524743 A1 FR2524743 A1 FR 2524743A1
Authority
FR
France
Prior art keywords
telephone
alert
line
call
call signal
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.)
Granted
Application number
FR8205668A
Other languages
English (en)
French (fr)
Other versions
FR2524743B1 (enExample
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.)
WADEL ALAIN
Original Assignee
WADEL ALAIN
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 WADEL ALAIN filed Critical WADEL ALAIN
Priority to FR8205668A priority Critical patent/FR2524743A1/fr
Publication of FR2524743A1 publication Critical patent/FR2524743A1/fr
Application granted granted Critical
Publication of FR2524743B1 publication Critical patent/FR2524743B1/fr
Granted legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/001—Signalling to an emergency team, e.g. firemen
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/006—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via telephone network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
FR8205668A 1982-04-01 1982-04-01 Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques Granted FR2524743A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8205668A FR2524743A1 (fr) 1982-04-01 1982-04-01 Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8205668A FR2524743A1 (fr) 1982-04-01 1982-04-01 Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques

Publications (2)

Publication Number Publication Date
FR2524743A1 true FR2524743A1 (fr) 1983-10-07
FR2524743B1 FR2524743B1 (enExample) 1984-05-04

Family

ID=9272658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8205668A Granted FR2524743A1 (fr) 1982-04-01 1982-04-01 Systeme d'alerte entre un centre de secours et des abonnes telephoniques a travers des lignes telephoniques

Country Status (1)

Country Link
FR (1) FR2524743A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146372A3 (en) * 1983-12-16 1988-02-17 Kyoichi Nagai Emergency warning device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH188244A (de) * 1936-04-24 1936-12-15 Siemens Ag Fernsprechanlage mit Gruppenalarmeinrichtung.
US3643029A (en) * 1970-02-10 1972-02-15 Paul H Breazeale Community warning system using telephone lines
FR2235557A1 (enExample) * 1973-06-26 1975-01-24 Mitel Canada Ltd

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH188244A (de) * 1936-04-24 1936-12-15 Siemens Ag Fernsprechanlage mit Gruppenalarmeinrichtung.
US3643029A (en) * 1970-02-10 1972-02-15 Paul H Breazeale Community warning system using telephone lines
FR2235557A1 (enExample) * 1973-06-26 1975-01-24 Mitel Canada Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146372A3 (en) * 1983-12-16 1988-02-17 Kyoichi Nagai Emergency warning device

Also Published As

Publication number Publication date
FR2524743B1 (enExample) 1984-05-04

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Legal Events

Date Code Title Description
ST Notification of lapse