CH406324A - Rufverfahren für Fernsprechanlagen - Google Patents

Rufverfahren für Fernsprechanlagen

Info

Publication number
CH406324A
CH406324A CH444464A CH444464A CH406324A CH 406324 A CH406324 A CH 406324A CH 444464 A CH444464 A CH 444464A CH 444464 A CH444464 A CH 444464A CH 406324 A CH406324 A CH 406324A
Authority
CH
Switzerland
Prior art keywords
telephone systems
call procedure
call
procedure
telephone
Prior art date
Application number
CH444464A
Other languages
English (en)
Inventor
Knauer Hans-Ulrich
Konold Armin
Original Assignee
Standard Telephon & Radio Ag
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
Priority claimed from DEST20496A external-priority patent/DE1180420B/de
Application filed by Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH406324A publication Critical patent/CH406324A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • 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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
CH444464A 1963-04-10 1964-04-08 Rufverfahren für Fernsprechanlagen CH406324A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEST20496A DE1180420B (de) 1963-04-10 1963-04-10 Rufverfahren fuer Fernsprechanlagen
DEST020497 1963-04-10

Publications (1)

Publication Number Publication Date
CH406324A true CH406324A (de) 1966-01-31

Family

ID=25994169

Family Applications (2)

Application Number Title Priority Date Filing Date
CH424064A CH412019A (de) 1963-04-10 1964-04-03 Rufumsetzerschaltung in Teilnehmer-Anschlussübertragungen für Fernsprechanlagen
CH444464A CH406324A (de) 1963-04-10 1964-04-08 Rufverfahren für Fernsprechanlagen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH424064A CH412019A (de) 1963-04-10 1964-04-03 Rufumsetzerschaltung in Teilnehmer-Anschlussübertragungen für Fernsprechanlagen

Country Status (6)

Country Link
US (2) US3342948A (de)
BE (2) BE646363A (de)
CH (2) CH412019A (de)
DE (1) DE1437543B2 (de)
NL (2) NL6403791A (de)
SE (1) SE325615B (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338395A (en) * 1940-06-25 1944-01-04 Gen Electric Signal transmission system
US2432204A (en) * 1944-01-05 1947-12-09 Rca Corp Pulse modulation system
US3061783A (en) * 1956-04-30 1962-10-30 Lynch Carrier Systems Inc Inband signalling system
US3156775A (en) * 1959-12-02 1964-11-10 Itt Telephone converter
US3210479A (en) * 1962-08-30 1965-10-05 Automatic Elect Lab Voice-frequency selective signalling arrangement
US3240879A (en) * 1962-12-18 1966-03-15 Bell Telephone Labor Inc Alarm circuits in portable radio telephone system

Also Published As

Publication number Publication date
DE1437543B2 (de) 1971-10-14
CH412019A (de) 1966-04-30
BE646363A (de) 1964-10-12
US3342948A (en) 1967-09-19
BE646362A (de) 1964-10-12
US3349185A (en) 1967-10-24
NL6403792A (de) 1964-10-12
DE1437543A1 (de) 1970-07-23
SE325615B (de) 1970-07-06
NL6403791A (de) 1964-10-12

Similar Documents

Publication Publication Date Title
BR6348886D0 (pt) Aparelho telefonico
CH429821A (de) Fernmeldeanlage
NL147000B (nl) Telefoonschakelstelsel met tijdverdeling.
DK116520B (da) Elektronisk telefonanlæg.
AT284207B (de) Tasteneinrichtung für Fernmeldeanlagen
CH412023A (fr) Installation de télécommunication
CH412998A (de) Zentral gesteuertes Vermittlungssystem, insbesondere für Fernsprechzwecke
CH408129A (de) Konferenzschaltung für Telephon- Teilnehmer
NL142556B (nl) Telefoonschakelstelsel met pbx-centrales.
CH425904A (de) Fernsprechteilnehmergerät
CH411046A (de) Zentral gesteuertes Vermittlungssystem, insbesondere für Fernsprechzwecke
CH412997A (de) Zentral gesteuertes Vermittlungssystem, insbesondere für Fernsprechzwecke
CH406324A (de) Rufverfahren für Fernsprechanlagen
AT238728B (de) Filterboden für Filteranlagen
AT244397B (de) Schaltungsanordnung für Münzfernsprecher
AT243332B (de) Schaltungsanordnung für Münzfernsprecher
AT246233B (de) Schaltungsanordnung für Fernmelde-, insbesondere Fernsprechanlagen
AT250456B (de) Schulterhaltevorrichtung für Telephonapparate
AT246801B (de) Münzfernsprecher für Orts- und Ferngespräche
CH423897A (de) Telephonanlage
AT277328B (de) Schaltungsanordnung für Fernsprechvermittlungsanlagen
AT244401B (de) Einrichtung für Fernsprechteilnehmeranschlüsse
AT243871B (de) Telephon-Vermittlungssystem
CH439411A (de) Schaltungsanordnung für relaisgesteuerte Fernsprechnebenstellenanlagen
FR1366776A (fr) Numéroteur