BE873499A - RINGING ARRANGEMENT FOR TELEPHONE CONTROL UNIT WITH CENTRALIZED CONTROL UNIT - Google Patents

RINGING ARRANGEMENT FOR TELEPHONE CONTROL UNIT WITH CENTRALIZED CONTROL UNIT

Info

Publication number
BE873499A
BE873499A BE192979A BE192914A BE873499A BE 873499 A BE873499 A BE 873499A BE 192979 A BE192979 A BE 192979A BE 192914 A BE192914 A BE 192914A BE 873499 A BE873499 A BE 873499A
Authority
BE
Belgium
Prior art keywords
control unit
telephone
centralized control
ringing arrangement
ringing
Prior art date
Application number
BE192979A
Other languages
French (fr)
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 BE873499A publication Critical patent/BE873499A/en

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)
BE192979A 1978-01-17 1979-01-16 RINGING ARRANGEMENT FOR TELEPHONE CONTROL UNIT WITH CENTRALIZED CONTROL UNIT BE873499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7801170A FR2423096A1 (en) 1978-01-17 1978-01-17 Ringing circuit for centrally controlled telephone exchange junction - has alternating signal source, and bipolar electronic switch output connected to subscriber and timer

Publications (1)

Publication Number Publication Date
BE873499A true BE873499A (en) 1979-05-16

Family

ID=9203528

Family Applications (1)

Application Number Title Priority Date Filing Date
BE192979A BE873499A (en) 1978-01-17 1979-01-16 RINGING ARRANGEMENT FOR TELEPHONE CONTROL UNIT WITH CENTRALIZED CONTROL UNIT

Country Status (5)

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

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 (en) * 1980-02-19 1986-05-28 Cselt Centro Studi Lab Telecom TELEPHONE CIRCUIT FOR THE GENERATION OF THE RINGTONE RHYTHM AND THE DETECTION OF THE RELEASE
US4349703A (en) * 1980-03-31 1982-09-14 International Telephone And Telegraph Corporation Programmable ring signal generator
DE3036686C2 (en) * 1980-09-29 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Subscriber line circuit
DE3141375A1 (en) * 1981-10-17 1983-06-30 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg METHOD AND CIRCUIT ARRANGEMENT FOR DETECTING LOOP CURRENT CRITERIA IN A TELECOMMUNICATION SYSTEM

Also Published As

Publication number Publication date
FR2423096B1 (en) 1981-10-16
IT1111760B (en) 1986-01-13
FR2423096A1 (en) 1979-11-09
IT7919275A0 (en) 1979-01-15
DE2901739A1 (en) 1979-07-19
ES476875A1 (en) 1979-05-16

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