IT1111760B - Congegno di suoneria per giuntore di centrale telefonica a unita' di comando centralizzata - Google Patents

Congegno di suoneria per giuntore di centrale telefonica a unita' di comando centralizzata

Info

Publication number
IT1111760B
IT1111760B IT19275/79A IT1927579A IT1111760B IT 1111760 B IT1111760 B IT 1111760B IT 19275/79 A IT19275/79 A IT 19275/79A IT 1927579 A IT1927579 A IT 1927579A IT 1111760 B IT1111760 B IT 1111760B
Authority
IT
Italy
Prior art keywords
ringer
conference
control unit
centralized control
telephone central
Prior art date
Application number
IT19275/79A
Other languages
English (en)
Other versions
IT7919275A0 (it
Original Assignee
Materiel Telephonique
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 Materiel Telephonique filed Critical Materiel Telephonique
Publication of IT7919275A0 publication Critical patent/IT7919275A0/it
Application granted granted Critical
Publication of IT1111760B publication Critical patent/IT1111760B/it

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
    • H04M19/026—Arrangements for interrupting the ringing current

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
IT19275/79A 1978-01-17 1979-01-15 Congegno di suoneria per giuntore di centrale telefonica a unita' di comando centralizzata IT1111760B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7801170A FR2423096A1 (fr) 1978-01-17 1978-01-17 Agencement de sonnerie pour joncteur de central telephonique a unite de commande centralisee

Publications (2)

Publication Number Publication Date
IT7919275A0 IT7919275A0 (it) 1979-01-15
IT1111760B true IT1111760B (it) 1986-01-13

Family

ID=9203528

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19275/79A IT1111760B (it) 1978-01-17 1979-01-15 Congegno di suoneria per giuntore di centrale telefonica a unita' di comando centralizzata

Country Status (5)

Country Link
BE (1) BE873499A (it)
DE (1) DE2901739A1 (it)
ES (1) ES476875A1 (it)
FR (1) FR2423096A1 (it)
IT (1) IT1111760B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU39444B (en) * 1979-09-07 1984-12-31 Iskra Sozd Elektro Indus Subschribes circuit for domestic electronic telephone exchangers
IT1128374B (it) * 1980-02-19 1986-05-28 Cselt Centro Studi Lab Telecom Circuito telefonico per la generazione del ritmo di suoneria ed il riconoscimento dello sgancio
US4349703A (en) * 1980-03-31 1982-09-14 International Telephone And Telegraph Corporation Programmable ring signal generator
DE3036686C2 (de) * 1980-09-29 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Teilnehmeranschlußschaltung
DE3141375A1 (de) * 1981-10-17 1983-06-30 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren und schaltungsanordnung zur erfassung von schleifenstromkriterien in einer fernmeldeanlage

Also Published As

Publication number Publication date
FR2423096A1 (fr) 1979-11-09
FR2423096B1 (it) 1981-10-16
IT7919275A0 (it) 1979-01-15
BE873499A (fr) 1979-05-16
DE2901739A1 (de) 1979-07-19
ES476875A1 (es) 1979-05-16

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