FR2272551B1 - - Google Patents
Info
- Publication number
- FR2272551B1 FR2272551B1 FR7418096A FR7418096A FR2272551B1 FR 2272551 B1 FR2272551 B1 FR 2272551B1 FR 7418096 A FR7418096 A FR 7418096A FR 7418096 A FR7418096 A FR 7418096A FR 2272551 B1 FR2272551 B1 FR 2272551B1
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
- H04M17/023—Circuit arrangements
-
- 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
- H04M15/30—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 the meter or calculation of charges not being controlled from an exchange
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Transceivers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7418096A FR2272551A1 (en) | 1974-05-24 | 1974-05-24 | Telephone communication duration switching device - has delay circuit, power circuit and switch giving preset call time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7418096A FR2272551A1 (en) | 1974-05-24 | 1974-05-24 | Telephone communication duration switching device - has delay circuit, power circuit and switch giving preset call time |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2272551A1 FR2272551A1 (en) | 1975-12-19 |
FR2272551B1 true FR2272551B1 (nl) | 1976-10-15 |
Family
ID=9139230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7418096A Granted FR2272551A1 (en) | 1974-05-24 | 1974-05-24 | Telephone communication duration switching device - has delay circuit, power circuit and switch giving preset call time |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2272551A1 (nl) |
-
1974
- 1974-05-24 FR FR7418096A patent/FR2272551A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2272551A1 (en) | 1975-12-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |