FR2243566A1 - Front-door telephone link and door-opening system - has internal telephone handset and signalling lights - Google Patents

Front-door telephone link and door-opening system - has internal telephone handset and signalling lights

Info

Publication number
FR2243566A1
FR2243566A1 FR7332101A FR7332101A FR2243566A1 FR 2243566 A1 FR2243566 A1 FR 2243566A1 FR 7332101 A FR7332101 A FR 7332101A FR 7332101 A FR7332101 A FR 7332101A FR 2243566 A1 FR2243566 A1 FR 2243566A1
Authority
FR
France
Prior art keywords
door
telephone
opening system
microphone
handset
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.)
Withdrawn
Application number
FR7332101A
Other languages
French (fr)
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.)
GERO JULIO AR
Original Assignee
GERO JULIO AR
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 GERO JULIO AR filed Critical GERO JULIO AR
Priority to FR7332101A priority Critical patent/FR2243566A1/en
Publication of FR2243566A1 publication Critical patent/FR2243566A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04M11/025—Door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0291—Door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party

Abstract

The front-door telephone link and door-opening system, for large office blocks and blocks of flats etc., has a main junction box (11) for the incoming cable, an amplifier (9), a light (8) to give the identification of each unit, a push-button (7) to signal to the selected unit, a microphone (6) at the front door and connected to each unit, a light (5) for two-way transmission indication, a switch (4) to interrupt the magneto-phone's operation, a push-button (3) to open the front door, a microphone (2) inside the building, and a telephone (1) forming a handset with the microphone.
FR7332101A 1973-09-06 1973-09-06 Front-door telephone link and door-opening system - has internal telephone handset and signalling lights Withdrawn FR2243566A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7332101A FR2243566A1 (en) 1973-09-06 1973-09-06 Front-door telephone link and door-opening system - has internal telephone handset and signalling lights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7332101A FR2243566A1 (en) 1973-09-06 1973-09-06 Front-door telephone link and door-opening system - has internal telephone handset and signalling lights

Publications (1)

Publication Number Publication Date
FR2243566A1 true FR2243566A1 (en) 1975-04-04

Family

ID=9124690

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332101A Withdrawn FR2243566A1 (en) 1973-09-06 1973-09-06 Front-door telephone link and door-opening system - has internal telephone handset and signalling lights

Country Status (1)

Country Link
FR (1) FR2243566A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042699A1 (en) * 1980-06-17 1981-12-30 Arthur George Geary Improvements in recording and playback apparatus
FR2647991A1 (en) * 1989-06-05 1990-12-07 Teti Louis Answering and recording machine for door intercom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042699A1 (en) * 1980-06-17 1981-12-30 Arthur George Geary Improvements in recording and playback apparatus
FR2647991A1 (en) * 1989-06-05 1990-12-07 Teti Louis Answering and recording machine for door intercom

Similar Documents

Publication Publication Date Title
GB1067210A (en) Telephone hold program system
GB1505828A (en) Calling aids
FR2243566A1 (en) Front-door telephone link and door-opening system - has internal telephone handset and signalling lights
ES394022A1 (en) Hands-free emergency call box
CA994485A (en) Off-premises station line circuit for a key telephone system
JPS56168446A (en) Cordless telephone device
JPS54114011A (en) Loudspeaker telephone device
GB2005959B (en) Tone selective key telephone intercom system
JPS5797258A (en) Button telephone set
AU6265780A (en) Key telephone intercom system
JPS53123605A (en) Conference service system
JPS5362404A (en) Incoming call charging system
JPS5384612A (en) Remote maintenance system
GB1034301A (en) Supervisory and remote control systems
JPS5432908A (en) Main wire centralized ringing device for telephone
JPS5379414A (en) Non-delay connection system
JPS56123137A (en) Cordless telephone set
JPS53147411A (en) Transmission system for charging signal
JPS5440503A (en) Digital signal system
JPS5399806A (en) Intra-office connection system
JPS54505A (en) Identifying system of types of incoming lines
JPS52120709A (en) Common line signal system
JPS5283105A (en) Connection system for talkie trunk
JPS56123143A (en) Cordless telephone set
JPS52151505A (en) Alarm sending system

Legal Events

Date Code Title Description
ST Notification of lapse