CA951444A - Pabx transmission and impulsing arrangement - Google Patents
Pabx transmission and impulsing arrangementInfo
- Publication number
- CA951444A CA951444A CA132,779,A CA132779A CA951444A CA 951444 A CA951444 A CA 951444A CA 132779 A CA132779 A CA 132779A CA 951444 A CA951444 A CA 951444A
- Authority
- CA
- Canada
- Prior art keywords
- impulsing
- pabx
- arrangement
- transmission
- pabx transmission
- 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.)
- Expired
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/0096—Trunk circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU375971 | 1971-01-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA951444A true CA951444A (en) | 1974-07-16 |
Family
ID=3694228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA132,779,A Expired CA951444A (en) | 1971-01-20 | 1972-01-19 | Pabx transmission and impulsing arrangement |
Country Status (7)
Country | Link |
---|---|
US (1) | US3794782A (en) |
BE (1) | BE778262A (en) |
CA (1) | CA951444A (en) |
DE (1) | DE2201986A1 (en) |
ES (1) | ES399050A1 (en) |
FR (1) | FR2122947A5 (en) |
IT (1) | IT946689B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5940358B2 (en) * | 1978-10-18 | 1984-09-29 | 日本電信電話株式会社 | Call path switch circuit |
DE3804216A1 (en) * | 1988-02-11 | 1989-08-24 | Telefonbau & Normalzeit Gmbh | CIRCUIT ARRANGEMENT FOR EXTERNAL LINE TRANSMISSION OF COMMUNICATION SWITCHING SYSTEMS, ESPECIALLY TELEPHONE EXTENSION SYSTEMS |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL287044A (en) * | 1961-12-21 | |||
DE1616690C3 (en) * | 1965-02-08 | 1974-09-19 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Circuit arrangement for reducing the inherent losses of inductances, especially in telephone switching systems |
-
1972
- 1972-01-17 DE DE19722201986 patent/DE2201986A1/en active Pending
- 1972-01-19 FR FR7201659A patent/FR2122947A5/fr not_active Expired
- 1972-01-19 CA CA132,779,A patent/CA951444A/en not_active Expired
- 1972-01-19 IT IT19522/72A patent/IT946689B/en active
- 1972-01-20 ES ES399050A patent/ES399050A1/en not_active Expired
- 1972-01-20 US US00219241A patent/US3794782A/en not_active Expired - Lifetime
- 1972-01-20 BE BE778262A patent/BE778262A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES399050A1 (en) | 1974-10-16 |
BE778262A (en) | 1972-07-20 |
FR2122947A5 (en) | 1972-09-01 |
DE2201986A1 (en) | 1972-08-10 |
US3794782A (en) | 1974-02-26 |
IT946689B (en) | 1973-05-21 |
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