CH537679A - Device for feeding additional devices in telephone stations - Google Patents
Device for feeding additional devices in telephone stationsInfo
- Publication number
- CH537679A CH537679A CH1575071A CH1575071A CH537679A CH 537679 A CH537679 A CH 537679A CH 1575071 A CH1575071 A CH 1575071A CH 1575071 A CH1575071 A CH 1575071A CH 537679 A CH537679 A CH 537679A
- Authority
- CH
- Switzerland
- Prior art keywords
- additional devices
- telephone stations
- feeding additional
- feeding
- stations
- Prior art date
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
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1575071A CH537679A (en) | 1971-10-29 | 1971-10-29 | Device for feeding additional devices in telephone stations |
DE19712161349 DE2161349B1 (en) | 1971-10-29 | 1971-12-07 | Device for constant voltage supply of to a telephone station in automatic telephone systems in parallel to connected additional devices |
NL7209262A NL7209262A (en) | 1971-10-29 | 1972-06-30 | |
FR7237629A FR2158926A5 (en) | 1971-10-29 | 1972-10-24 | |
IT30940/72A IT969918B (en) | 1971-10-29 | 1972-10-26 | DEVICE FOR THE POWER SUPPLY OF ADDITIONAL DEVICES ATTACHED TO TELEPHONE DEVICES |
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 |
---|---|
CH537679A true CH537679A (en) | 1973-05-31 |
Family
ID=4411640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1575071A CH537679A (en) | 1971-10-29 | 1971-10-29 | Device for feeding additional devices in telephone stations |
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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3528260A1 (en) * | 1985-07-08 | 1987-01-15 | Sodeco Compteurs De Geneve | DEVICE FOR SUPPLYING AN AUXILIARY DEVICE CONNECTED IN AUTOMATIC TELEPHONE SYSTEMS TO A TELEPHONE CIRCUIT PARALLEL |
Families Citing this family (7)
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 |
NL8800481A (en) * | 1988-02-25 | 1989-09-18 | At & T & Philips Telecomm | DC POWER SUPPLY FOR AN S-BUS IN ISDN. |
-
1971
- 1971-10-29 CH CH1575071A patent/CH537679A/en not_active IP Right Cessation
- 1971-12-07 DE DE19712161349 patent/DE2161349B1/en active Pending
-
1972
- 1972-06-30 NL NL7209262A patent/NL7209262A/xx unknown
- 1972-10-24 FR FR7237629A patent/FR2158926A5/fr not_active Expired
- 1972-10-26 IT IT30940/72A patent/IT969918B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3528260A1 (en) * | 1985-07-08 | 1987-01-15 | Sodeco Compteurs De Geneve | DEVICE FOR SUPPLYING AN AUXILIARY DEVICE CONNECTED IN AUTOMATIC TELEPHONE SYSTEMS TO A TELEPHONE CIRCUIT PARALLEL |
Also Published As
Publication number | Publication date |
---|---|
DE2161349B1 (en) | 1972-12-07 |
IT969918B (en) | 1974-04-10 |
NL7209262A (en) | 1973-05-02 |
FR2158926A5 (en) | 1973-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |