ES466777A1 - Un circuito para rastrear llamadas en un sistema telefonico. - Google Patents
Un circuito para rastrear llamadas en un sistema telefonico.Info
- Publication number
- ES466777A1 ES466777A1 ES466777A ES466777A ES466777A1 ES 466777 A1 ES466777 A1 ES 466777A1 ES 466777 A ES466777 A ES 466777A ES 466777 A ES466777 A ES 466777A ES 466777 A1 ES466777 A1 ES 466777A1
- Authority
- ES
- Spain
- Prior art keywords
- translation
- receiver
- circuit
- machine
- legally binding
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772705137 DE2705137C2 (de) | 1977-02-08 | 1977-02-08 | Schaltungsanordnung zum Fangen in einem Fernsprechsystem |
Publications (1)
Publication Number | Publication Date |
---|---|
ES466777A1 true ES466777A1 (es) | 1978-10-01 |
Family
ID=6000590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES466777A Expired ES466777A1 (es) | 1977-02-08 | 1978-02-08 | Un circuito para rastrear llamadas en un sistema telefonico. |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2705137C2 (de) |
ES (1) | ES466777A1 (de) |
FR (1) | FR2379951A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1148027B (it) * | 1981-03-03 | 1986-11-26 | Cselt Centro Studi Lab Telecom | Sistema per la propagazione lungo un collegamento telefonico dell i dentita degli utenti interessati a tale collegamento |
BR8106464A (pt) * | 1981-10-02 | 1983-09-13 | Sonintel Sociedade Nacional De | Detector de chamada telefonicas |
CA1217550A (en) * | 1981-10-02 | 1987-02-03 | Jose P. Pintos | Calling line tracing system and identification detector |
DE3326979A1 (de) * | 1983-07-27 | 1985-02-07 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung fuer fernmeldevermittlungssysteme mit direktwahl |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1239741B (de) * | 1965-07-28 | 1967-05-03 | Siemens Ag | Schaltungsanordnung fuer Fernmeldeanlagen, insbesondere Fernsprechanlagen, mit Einrichtungen zur automatischen Verbindungs-verfolgung |
DE2657880A1 (de) * | 1976-12-21 | 1978-06-22 | Standard Elektrik Lorenz Ag | Fernsprechwaehlsystem |
-
1977
- 1977-02-08 DE DE19772705137 patent/DE2705137C2/de not_active Expired
-
1978
- 1978-02-02 FR FR7802892A patent/FR2379951A1/fr active Granted
- 1978-02-08 ES ES466777A patent/ES466777A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2379951B3 (de) | 1980-10-10 |
FR2379951A1 (fr) | 1978-09-01 |
DE2705137A1 (de) | 1978-08-10 |
DE2705137C2 (de) | 1983-04-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19991119 |