JPS5235909A - Telephone system - Google Patents
Telephone systemInfo
- Publication number
- JPS5235909A JPS5235909A JP51110653A JP11065376A JPS5235909A JP S5235909 A JPS5235909 A JP S5235909A JP 51110653 A JP51110653 A JP 51110653A JP 11065376 A JP11065376 A JP 11065376A JP S5235909 A JPS5235909 A JP S5235909A
- Authority
- JP
- Japan
- Prior art keywords
- telephone system
- telephone
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2541092A DE2541092C3 (en) | 1975-09-15 | 1975-09-15 | Circuit arrangement for assigning a type of authorization in private branch exchanges |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5235909A true JPS5235909A (en) | 1977-03-18 |
JPS5739112B2 JPS5739112B2 (en) | 1982-08-19 |
Family
ID=5956525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51110653A Granted JPS5235909A (en) | 1975-09-15 | 1976-09-14 | Telephone system |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5235909A (en) |
AT (1) | AT346914B (en) |
BE (1) | BE846230A (en) |
CH (1) | CH607487A5 (en) |
DE (1) | DE2541092C3 (en) |
FR (1) | FR2324173A1 (en) |
GB (1) | GB1549006A (en) |
IT (1) | IT1072760B (en) |
SE (1) | SE421367B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634530U (en) * | 1979-08-22 | 1981-04-04 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2832850C2 (en) * | 1978-07-26 | 1986-05-28 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for telecommunication switching systems, in particular telephone switching systems, with authorization evaluation |
DE3409134A1 (en) * | 1984-03-09 | 1985-09-12 | Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin | Method and circuit arrangement for trunk circuits for blocking devices |
-
1975
- 1975-09-15 DE DE2541092A patent/DE2541092C3/en not_active Expired
-
1976
- 1976-07-14 GB GB29224/76A patent/GB1549006A/en not_active Expired
- 1976-07-19 CH CH925176A patent/CH607487A5/xx not_active IP Right Cessation
- 1976-08-10 AT AT592076A patent/AT346914B/en not_active IP Right Cessation
- 1976-08-30 FR FR7626111A patent/FR2324173A1/en active Granted
- 1976-09-10 IT IT27066/76A patent/IT1072760B/en active
- 1976-09-14 JP JP51110653A patent/JPS5235909A/en active Granted
- 1976-09-14 SE SE7610179A patent/SE421367B/en unknown
- 1976-09-15 BE BE170656A patent/BE846230A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5634530U (en) * | 1979-08-22 | 1981-04-04 | ||
JPS589630Y2 (en) * | 1979-08-22 | 1983-02-22 | 日本鋼管株式会社 | Surplus soil improvement machine |
Also Published As
Publication number | Publication date |
---|---|
ATA592076A (en) | 1978-04-15 |
AT346914B (en) | 1978-12-11 |
DE2541092A1 (en) | 1977-03-17 |
BE846230A (en) | 1977-03-15 |
FR2324173B1 (en) | 1981-09-04 |
SE421367B (en) | 1981-12-14 |
JPS5739112B2 (en) | 1982-08-19 |
DE2541092B2 (en) | 1977-11-03 |
FR2324173A1 (en) | 1977-04-08 |
GB1549006A (en) | 1979-08-01 |
IT1072760B (en) | 1985-04-10 |
CH607487A5 (en) | 1978-12-29 |
SE7610179L (en) | 1977-03-16 |
DE2541092C3 (en) | 1979-11-22 |
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