FR2453575A1 - Equipement de signalisation multifrequence a commande centralisee - Google Patents

Equipement de signalisation multifrequence a commande centralisee

Info

Publication number
FR2453575A1
FR2453575A1 FR7908781A FR7908781A FR2453575A1 FR 2453575 A1 FR2453575 A1 FR 2453575A1 FR 7908781 A FR7908781 A FR 7908781A FR 7908781 A FR7908781 A FR 7908781A FR 2453575 A1 FR2453575 A1 FR 2453575A1
Authority
FR
France
Prior art keywords
signaling
multifrequency
centralized control
signaling equipment
frequency signaling
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
FR7908781A
Other languages
English (en)
French (fr)
Other versions
FR2453575B1 (enExample
Inventor
Michel Beaute
Roberto Cordani
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.)
Nokia Inc
Original Assignee
Nokia Inc
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 Nokia Inc filed Critical Nokia Inc
Priority to FR7908781A priority Critical patent/FR2453575A1/fr
Publication of FR2453575A1 publication Critical patent/FR2453575A1/fr
Application granted granted Critical
Publication of FR2453575B1 publication Critical patent/FR2453575B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR7908781A 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee Granted FR2453575A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7908781A FR2453575A1 (fr) 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7908781A FR2453575A1 (fr) 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee

Publications (2)

Publication Number Publication Date
FR2453575A1 true FR2453575A1 (fr) 1980-10-31
FR2453575B1 FR2453575B1 (enExample) 1982-03-19

Family

ID=9224070

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908781A Granted FR2453575A1 (fr) 1979-04-06 1979-04-06 Equipement de signalisation multifrequence a commande centralisee

Country Status (1)

Country Link
FR (1) FR2453575A1 (enExample)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280141A1 (fr) * 1974-07-26 1976-02-20 Materiel Telephonique Systeme de signalisation entre centres de traitement d'informations
FR2391622A1 (fr) * 1977-05-18 1978-12-15 Materiel Telephonique Systeme de signalisation multifrequence
FR2404365A1 (fr) * 1977-09-21 1979-04-20 Materiel Telephonique Central telephonique a barres croisees comportant un systeme d'enregistreurs a processeurs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280141A1 (fr) * 1974-07-26 1976-02-20 Materiel Telephonique Systeme de signalisation entre centres de traitement d'informations
FR2391622A1 (fr) * 1977-05-18 1978-12-15 Materiel Telephonique Systeme de signalisation multifrequence
FR2404365A1 (fr) * 1977-09-21 1979-04-20 Materiel Telephonique Central telephonique a barres croisees comportant un systeme d'enregistreurs a processeurs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *
EXBK/78 *

Also Published As

Publication number Publication date
FR2453575B1 (enExample) 1982-03-19

Similar Documents

Publication Publication Date Title
DE69119881D1 (de) Fernkanalumschaltung für Videodienstnachwahl
FR2407625A1 (fr) Dispositif de transfert de communication pour un systeme de telecommunications
JPS5462711A (en) Processing system for answer of private branch exchange
FR2453575A1 (fr) Equipement de signalisation multifrequence a commande centralisee
JPS53132924A (en) Remote control system
FR2437116A1 (fr) Dispositif de separation et d'equilibrage pour autocommutateurs telephoniques
FR2382817A1 (fr) Systeme de telephonie a commande electronique, comportant des champs de couplage formes de thyristors, pour une intercommunication a un fil
JPS5437511A (en) Conference connection system against incomimg call of junction line
JPS5620366A (en) Subscriber's-number confirmation system
JPS5430707A (en) Six-wire switching system
FR2648663B1 (fr) Architecture d'installation telephonique de type prive
GB1084099A (enExample)
US1938709A (en) Telephone system
JPS6484996A (en) Premises cordless telephone system
FR2455414A1 (fr) Reseau de connexion temporel modulaire
FR2295592A1 (fr) Bougies d'allumage
SE8000586L (sv) Anordning for kontroll av till en abonnentapparat kommande telefonanrop
US1863139A (en) Time of day announcing system
JPS54908A (en) Centralized response telephone set
JPS537105A (en) Transmission relay exchange system for aural and facsimile signals
GB1549073A (en) Transmitting and processing switching characteristics for connection traffic in a telephone network
JPS57147358A (en) Switching and connecting system
JPS562788A (en) Order telephone service system
JPS53120314A (en) Exchange system of two wire-four wire hybrid
DET0001195MA (de) Wechsel-Lautsprechanlage

Legal Events

Date Code Title Description
ST Notification of lapse