IT969918B - DEVICE FOR THE POWER SUPPLY OF ADDITIONAL DEVICES ATTACHED TO TELEPHONE DEVICES - Google Patents

DEVICE FOR THE POWER SUPPLY OF ADDITIONAL DEVICES ATTACHED TO TELEPHONE DEVICES

Info

Publication number
IT969918B
IT969918B IT30940/72A IT3094072A IT969918B IT 969918 B IT969918 B IT 969918B IT 30940/72 A IT30940/72 A IT 30940/72A IT 3094072 A IT3094072 A IT 3094072A IT 969918 B IT969918 B IT 969918B
Authority
IT
Italy
Prior art keywords
power supply
devices
telephone
attached
additional
Prior art date
Application number
IT30940/72A
Other languages
Italian (it)
Original Assignee
Sodeco Compteurs De Geneve
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 Sodeco Compteurs De Geneve filed Critical Sodeco Compteurs De Geneve
Application granted granted Critical
Publication of IT969918B publication Critical patent/IT969918B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT30940/72A 1971-10-29 1972-10-26 DEVICE FOR THE POWER SUPPLY OF ADDITIONAL DEVICES ATTACHED TO TELEPHONE DEVICES IT969918B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1575071A CH537679A (en) 1971-10-29 1971-10-29 Device for feeding additional devices in telephone stations

Publications (1)

Publication Number Publication Date
IT969918B true IT969918B (en) 1974-04-10

Family

ID=4411640

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30940/72A IT969918B (en) 1971-10-29 1972-10-26 DEVICE FOR THE POWER SUPPLY OF ADDITIONAL DEVICES ATTACHED TO TELEPHONE DEVICES

Country Status (5)

Country Link
CH (1) CH537679A (en)
DE (1) DE2161349B1 (en)
FR (1) FR2158926A5 (en)
IT (1) IT969918B (en)
NL (1) NL7209262A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238225A1 (en) * 1972-08-03 1974-02-14 Itt Ind Gmbh Deutsche OPERATING WIRING OF A TELEPHONE SET
GB1394148A (en) * 1972-09-11 1975-05-14 Int Standard Electric Corp Push-button telphone subset
CH589395A5 (en) * 1975-09-11 1977-06-30 Sodeco Compteurs De Geneve
DE2931456C2 (en) * 1979-08-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Parallel control circuit
FR2538661A1 (en) * 1982-12-28 1984-06-29 Thomson Csf Electrical circuit accomplishing the basic functions of a subscriber telephone set.
FR2557396A1 (en) * 1983-11-15 1985-06-28 Gesi HIGH IMPEDANCE POWER SUPPLY FOR ELECTRONIC CIRCUIT POWERED BY A TELEPHONE LINE
CH667559A5 (en) * 1985-07-08 1988-10-14 Sodeco Compteurs De Geneve DEVICE FOR SUPPLYING AN AUXILIARY DEVICE CONNECTED TO A TELEPHONE CIRCUIT IN PARALLEL IN AUTOMATIC TELEPHONE SYSTEMS.
NL8800481A (en) * 1988-02-25 1989-09-18 At & T & Philips Telecomm DC POWER SUPPLY FOR AN S-BUS IN ISDN.

Also Published As

Publication number Publication date
NL7209262A (en) 1973-05-02
FR2158926A5 (en) 1973-06-15
CH537679A (en) 1973-05-31
DE2161349B1 (en) 1972-12-07

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