BE822203A - Equipement permettant de tester une installation telephonique ahauts-parleurs - Google Patents
Equipement permettant de tester une installation telephonique ahauts-parleursInfo
- Publication number
- BE822203A BE822203A BE150513A BE150513A BE822203A BE 822203 A BE822203 A BE 822203A BE 150513 A BE150513 A BE 150513A BE 150513 A BE150513 A BE 150513A BE 822203 A BE822203 A BE 822203A
- Authority
- BE
- Belgium
- Prior art keywords
- speakers
- testing
- equipment
- telephone system
- telephone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732358143 DE2358143B2 (de) | 1973-11-22 | 1973-11-22 | Vorrichtung zur Überprüfung von Lautsprecheranlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
BE822203A true BE822203A (fr) | 1975-03-03 |
Family
ID=5898729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE150513A BE822203A (fr) | 1973-11-22 | 1974-11-14 | Equipement permettant de tester une installation telephonique ahauts-parleurs |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT331880B (fr) |
BE (1) | BE822203A (fr) |
DE (1) | DE2358143B2 (fr) |
FR (1) | FR2252714A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2741000C2 (de) * | 1977-09-12 | 1982-04-15 | Industronic, Industrie-Electronic Gmbh & Co Kg, 6980 Wertheim | Leitungsgebundenes Übertragungssystem für Sprechverkehr und Informationsverarbeitung |
-
1973
- 1973-11-22 DE DE19732358143 patent/DE2358143B2/de not_active Withdrawn
-
1974
- 1974-10-21 AT AT843074A patent/AT331880B/de not_active IP Right Cessation
- 1974-10-31 FR FR7436480A patent/FR2252714A1/fr active Granted
- 1974-11-14 BE BE150513A patent/BE822203A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
ATA843074A (de) | 1975-12-15 |
FR2252714A1 (en) | 1975-06-20 |
DE2358143B2 (de) | 1975-10-16 |
DE2358143A1 (de) | 1975-06-05 |
FR2252714B3 (fr) | 1976-12-10 |
AT331880B (de) | 1976-08-25 |
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