IL50405A - Telephone ringing generator - Google Patents

Telephone ringing generator

Info

Publication number
IL50405A
IL50405A IL50405A IL5040576A IL50405A IL 50405 A IL50405 A IL 50405A IL 50405 A IL50405 A IL 50405A IL 5040576 A IL5040576 A IL 5040576A IL 50405 A IL50405 A IL 50405A
Authority
IL
Israel
Prior art keywords
telephone ringing
ringing generator
generator
telephone
ringing
Prior art date
Application number
IL50405A
Other versions
IL50405A0 (en
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of IL50405A0 publication Critical patent/IL50405A0/en
Publication of IL50405A publication Critical patent/IL50405A/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
    • H04M19/04—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
IL50405A 1975-09-05 1976-09-02 Telephone ringing generator IL50405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2539505A DE2539505C3 (en) 1975-09-05 1975-09-05 Ring tone generator

Publications (2)

Publication Number Publication Date
IL50405A0 IL50405A0 (en) 1976-11-30
IL50405A true IL50405A (en) 1979-09-30

Family

ID=5955672

Family Applications (1)

Application Number Title Priority Date Filing Date
IL50405A IL50405A (en) 1975-09-05 1976-09-02 Telephone ringing generator

Country Status (6)

Country Link
AT (1) AT350637B (en)
BR (1) BR7604863A (en)
DE (1) DE2539505C3 (en)
ES (1) ES451179A1 (en)
IL (1) IL50405A (en)
LU (1) LU75726A1 (en)

Also Published As

Publication number Publication date
ES451179A1 (en) 1977-08-16
ATA656976A (en) 1978-11-15
IL50405A0 (en) 1976-11-30
DE2539505A1 (en) 1977-03-10
BR7604863A (en) 1977-08-09
LU75726A1 (en) 1977-04-28
DE2539505C3 (en) 1978-07-06
DE2539505B2 (en) 1977-11-24
AT350637B (en) 1979-06-11

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