BE893243A - Montage de raccordement d'appel de tonalite electronique a un poste telephonique a deux voies - Google Patents
Montage de raccordement d'appel de tonalite electronique a un poste telephonique a deux voiesInfo
- Publication number
- BE893243A BE893243A BE0/208136A BE208136A BE893243A BE 893243 A BE893243 A BE 893243A BE 0/208136 A BE0/208136 A BE 0/208136A BE 208136 A BE208136 A BE 208136A BE 893243 A BE893243 A BE 893243A
- Authority
- BE
- Belgium
- Prior art keywords
- telephone set
- call connection
- connection mounting
- electronic tone
- way telephone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813120139 DE3120139C1 (de) | 1981-05-20 | 1981-05-20 | Schaltungsanordnung zur Anschaltung eines elektronischen Tonrufes an eine Zweiwegefernsprechstation |
Publications (1)
Publication Number | Publication Date |
---|---|
BE893243A true BE893243A (fr) | 1982-11-19 |
Family
ID=6132833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/208136A BE893243A (fr) | 1981-05-20 | 1982-05-19 | Montage de raccordement d'appel de tonalite electronique a un poste telephonique a deux voies |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT379265B (fr) |
BE (1) | BE893243A (fr) |
DE (1) | DE3120139C1 (fr) |
FI (1) | FI74853C (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9400314A (nl) * | 1994-03-01 | 1995-10-02 | Nederland Ptt | Inrichting voor het in responsie op een telefoonweksignaal genereren van een attentiesignaal. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2539415A1 (de) * | 1975-09-04 | 1977-03-10 | Siemens Ag | Schaltungsanordnung fuer eine zweiwege-fernsprechstation mit rueckfragemoeglichkeit |
-
1981
- 1981-05-20 DE DE19813120139 patent/DE3120139C1/de not_active Expired
-
1982
- 1982-03-11 AT AT0097182A patent/AT379265B/de not_active IP Right Cessation
- 1982-05-19 FI FI821778A patent/FI74853C/fi not_active IP Right Cessation
- 1982-05-19 BE BE0/208136A patent/BE893243A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FI821778A0 (fi) | 1982-05-19 |
ATA97182A (de) | 1985-04-15 |
FI74853B (fi) | 1987-11-30 |
FI74853C (fi) | 1988-03-10 |
DE3120139C1 (de) | 1982-10-28 |
AT379265B (de) | 1985-12-10 |
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