ES2070711A2 - Discriminador de llamadas para central telefonica. - Google Patents
Discriminador de llamadas para central telefonica.Info
- Publication number
- ES2070711A2 ES2070711A2 ES09300311A ES9300311A ES2070711A2 ES 2070711 A2 ES2070711 A2 ES 2070711A2 ES 09300311 A ES09300311 A ES 09300311A ES 9300311 A ES9300311 A ES 9300311A ES 2070711 A2 ES2070711 A2 ES 2070711A2
- Authority
- ES
- Spain
- Prior art keywords
- screening device
- telephone exchange
- call screening
- exchange call
- equipment
- 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.)
- Granted
Links
Landscapes
- Optical Communication System (AREA)
- Structure Of Telephone Exchanges (AREA)
Abstract
DISCRIMINADOR DE LLAMADAS PARA CENTRAL TELEFONICA. EL DISCRIMINADOR DE LLAMADAS PARA CENTRAL TELEFONICA OBJETO DE LA INVENCION SE TRATA DE UN EQUIPO CUYO FIN ES ELIMINAR LA POSIBILIDAD DE QUE UN ABONADO REALICE UNA COMUNICACION CON CIERTO/S SERVICIO/S. SE CONSTITUYE MEDIANTE UN CUERPO (1), CON UNA BASE Y UNA TAPA DE PLASTICO SOLDADAS, QUE DISPONE EN UNO DE SUS EXTREMOS DE UNA CLAVIJA (2) PARA SU CONEXION A LOS REPARTIDORES (3) DE LAS CENTRALES TELEFONICAS, MIENTRAS EN SU INTERIOR ALOJA UNA PLACA DE CIRCUITO IMPRESO DE DOBLE CARA QUE SOPORTA TODA LA ELECTRONICA DEL EQUIPO FORMADA POR LA ASOCIACION FUNCIONAL DE UN CIRCUITO INTEGRADO (4) QUE INCLUYE UN DETECTOR OPTICO Y UN INTERRUPTOR, COLOCADO EN SERIE CON UNO DE LOS HILOS DEL PAR TELEFONICO, UN CIRCUITO DE ALIMENTACION (5) Y UN MICROCONTROLADOR (6) CON SU CORRESPONDIENTE OSCILADOR (7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9300311A ES2070711B1 (es) | 1993-02-17 | 1993-02-17 | Discriminador de llamadas para central telefonica. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9300311A ES2070711B1 (es) | 1993-02-17 | 1993-02-17 | Discriminador de llamadas para central telefonica. |
Publications (3)
Publication Number | Publication Date |
---|---|
ES2070711A2 true ES2070711A2 (es) | 1995-06-01 |
ES2070711R ES2070711R (es) | 1997-01-01 |
ES2070711B1 ES2070711B1 (es) | 1997-07-01 |
Family
ID=8280815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9300311A Expired - Lifetime ES2070711B1 (es) | 1993-02-17 | 1993-02-17 | Discriminador de llamadas para central telefonica. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2070711B1 (es) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4188508A (en) * | 1978-08-21 | 1980-02-12 | Brindle Patrick A | Telephone call restricting apparatus |
US4355208A (en) * | 1980-08-27 | 1982-10-19 | Mitel Corporation | Telephone call denial system |
WO1987000376A1 (en) * | 1985-06-28 | 1987-01-15 | Terence John Newell | Telephone line access control |
GB2200516A (en) * | 1987-01-27 | 1988-08-03 | Richard Drewnicki | Call barring apparatus |
US4866762A (en) * | 1988-04-04 | 1989-09-12 | Pintar Robert R | Apparatus for restricting telephone calls |
-
1993
- 1993-02-17 ES ES9300311A patent/ES2070711B1/es not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4188508A (en) * | 1978-08-21 | 1980-02-12 | Brindle Patrick A | Telephone call restricting apparatus |
US4355208A (en) * | 1980-08-27 | 1982-10-19 | Mitel Corporation | Telephone call denial system |
WO1987000376A1 (en) * | 1985-06-28 | 1987-01-15 | Terence John Newell | Telephone line access control |
GB2200516A (en) * | 1987-01-27 | 1988-08-03 | Richard Drewnicki | Call barring apparatus |
US4866762A (en) * | 1988-04-04 | 1989-09-12 | Pintar Robert R | Apparatus for restricting telephone calls |
Also Published As
Publication number | Publication date |
---|---|
ES2070711R (es) | 1997-01-01 |
ES2070711B1 (es) | 1997-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19950601 Kind code of ref document: R Effective date: 19950601 |
|
FA2A | Application withdrawn |
Effective date: 19980805 |