SE328334B - - Google Patents
Info
- Publication number
- SE328334B SE328334B SE1617566A SE1617566A SE328334B SE 328334 B SE328334 B SE 328334B SE 1617566 A SE1617566 A SE 1617566A SE 1617566 A SE1617566 A SE 1617566A SE 328334 B SE328334 B SE 328334B
- Authority
- SE
- Sweden
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Lock And Its Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GR650029106 | 1965-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE328334B true SE328334B (en:Method) | 1970-09-14 |
Family
ID=10927178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1617566A SE328334B (en:Method) | 1965-11-26 | 1966-11-25 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1268215B (en:Method) |
| GB (1) | GB1170076A (en:Method) |
| SE (1) | SE328334B (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG37515A1 (en) * | 1983-02-02 | 1985-06-14 | Popov | Device for limiting telephone dial selection |
| BG37516A1 (en) * | 1983-03-14 | 1985-06-14 | Popov | Device for limiting telephone dial selection |
| DE3622712A1 (de) * | 1986-07-05 | 1988-01-21 | Neumann Elektronik Gmbh | Verfahren zur sperrung einer fernsprecheinrichtung fuer abgehende gespraeche in fernsprechanlagen mit impuls- und/oder frequenzwahl sowie waehlsperre zur durchfuehrung des verfahrens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE645061C (de) * | 1934-02-11 | 1937-05-20 | Int Standard Electric Corp | Schaltung fuer Fernsprechanlagen mit Waehlerbetrieb |
| DE933276C (de) * | 1953-02-19 | 1955-09-22 | Siemens Ag | Fernsprechnummernschalter mit Sperrung bestimmter Anfangsziffern |
| DE1000872B (de) * | 1955-06-04 | 1957-01-17 | Fernsprecher Ges M B H Deutsch | Fernsprechnummernschalter mit einer die Wahl von Verkehrsausscheidungsziffern durch einen Sperrkontakt verhindernden Vorrichtung |
| DE1029420B (de) * | 1957-04-02 | 1958-05-08 | Lorenz C Ag | Nummernschalter fuer Fernsprechanlagen mit Sperrung der ersten Ziffer einer Rufnummer |
| BE636631A (en:Method) * | 1962-08-28 |
-
1966
- 1966-04-01 DE DE19661268215 patent/DE1268215B/de active Pending
- 1966-11-07 GB GB4975666A patent/GB1170076A/en not_active Expired
- 1966-11-25 SE SE1617566A patent/SE328334B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1170076A (en) | 1969-11-12 |
| DE1268215B (de) | 1968-05-16 |