NL7111987A - - Google Patents
Info
- Publication number
- NL7111987A NL7111987A NL7111987A NL7111987A NL7111987A NL 7111987 A NL7111987 A NL 7111987A NL 7111987 A NL7111987 A NL 7111987A NL 7111987 A NL7111987 A NL 7111987A NL 7111987 A NL7111987 A NL 7111987A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH901471A CH532873A (de) | 1971-06-21 | 1971-06-21 | Gebührenzähler für Fernsprechanlagen mit automatischer Gebührenverrechnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL7111987A true NL7111987A (cg-RX-API-DMAC7.html) | 1972-12-27 |
| NL147907B NL147907B (nl) | 1975-11-17 |
Family
ID=4347382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7111987A NL147907B (nl) | 1971-06-21 | 1971-08-31 | Gesprekkentellerschakeling. |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH532873A (cg-RX-API-DMAC7.html) |
| ES (1) | ES404018A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2143118B1 (cg-RX-API-DMAC7.html) |
| IT (1) | IT956582B (cg-RX-API-DMAC7.html) |
| NL (1) | NL147907B (cg-RX-API-DMAC7.html) |
| SE (1) | SE370304B (cg-RX-API-DMAC7.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH622654A5 (cg-RX-API-DMAC7.html) * | 1977-09-30 | 1981-04-15 | Sodeco Compteurs De Geneve | |
| DE3544687C2 (de) * | 1985-12-18 | 1993-12-02 | Bosch Gmbh Robert | Elektrische Sperrvorrichtung zum Sperren der von einem Fernsprechapparat abgehenden Gespräche |
-
1971
- 1971-06-21 CH CH901471A patent/CH532873A/de not_active IP Right Cessation
- 1971-08-31 NL NL7111987A patent/NL147907B/xx unknown
-
1972
- 1972-06-14 SE SE784772A patent/SE370304B/xx unknown
- 1972-06-15 IT IT2569572A patent/IT956582B/it active
- 1972-06-19 ES ES404018A patent/ES404018A1/es not_active Expired
- 1972-06-20 FR FR7222182A patent/FR2143118B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE370304B (cg-RX-API-DMAC7.html) | 1974-10-07 |
| NL147907B (nl) | 1975-11-17 |
| IT956582B (it) | 1973-10-10 |
| ES404018A1 (es) | 1975-05-01 |
| FR2143118B1 (cg-RX-API-DMAC7.html) | 1973-07-13 |
| CH532873A (de) | 1973-01-15 |
| FR2143118A1 (cg-RX-API-DMAC7.html) | 1973-02-02 |