FR2631186B1 - Selecteur automatique d'appels telephoniques - Google Patents
Selecteur automatique d'appels telephoniquesInfo
- Publication number
- FR2631186B1 FR2631186B1 FR8806200A FR8806200A FR2631186B1 FR 2631186 B1 FR2631186 B1 FR 2631186B1 FR 8806200 A FR8806200 A FR 8806200A FR 8806200 A FR8806200 A FR 8806200A FR 2631186 B1 FR2631186 B1 FR 2631186B1
- Authority
- FR
- France
- Prior art keywords
- telephone call
- automatic telephone
- call selector
- selector
- automatic
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/663—Preventing unauthorised calls to a telephone set
- H04M1/665—Preventing unauthorised calls to a telephone set by checking the validity of a code
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8806200A FR2631186B1 (fr) | 1988-05-05 | 1988-05-05 | Selecteur automatique d'appels telephoniques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8806200A FR2631186B1 (fr) | 1988-05-05 | 1988-05-05 | Selecteur automatique d'appels telephoniques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2631186A1 FR2631186A1 (fr) | 1989-11-10 |
FR2631186B1 true FR2631186B1 (fr) | 1994-09-02 |
Family
ID=9366114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8806200A Expired - Fee Related FR2631186B1 (fr) | 1988-05-05 | 1988-05-05 | Selecteur automatique d'appels telephoniques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2631186B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2678795A1 (fr) * | 1991-07-02 | 1993-01-08 | Gotlibowicz Jean | Controleur d'appels telephoniques. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4429188A (en) * | 1981-06-15 | 1984-01-31 | Allen Thomas E | Telephone call screener |
US4488005A (en) * | 1982-05-13 | 1984-12-11 | Texas Instruments Incorporated | Telephone answering apparatus with call-screening capabilities |
FR2556156B1 (fr) * | 1983-12-02 | 1987-06-19 | Epaud Claude | Procede et dispositif de selection d'appels recus par telephone |
US4611098A (en) * | 1984-12-04 | 1986-09-09 | Giorgio Paul J | Coded telephone access system |
US4639552A (en) * | 1985-03-08 | 1987-01-27 | Leon Hall | Apparatus for converting a standard telephone to an unlisted number telephone |
-
1988
- 1988-05-05 FR FR8806200A patent/FR2631186B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2631186A1 (fr) | 1989-11-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |