ES178725A1 - IMPROVEMENTS IN OR RELATED TO LONG-DISTANCE TELEPHONE CENTERS - Google Patents
IMPROVEMENTS IN OR RELATED TO LONG-DISTANCE TELEPHONE CENTERSInfo
- Publication number
- ES178725A1 ES178725A1 ES0178725A ES178725A ES178725A1 ES 178725 A1 ES178725 A1 ES 178725A1 ES 0178725 A ES0178725 A ES 0178725A ES 178725 A ES178725 A ES 178725A ES 178725 A1 ES178725 A1 ES 178725A1
- Authority
- ES
- Spain
- Prior art keywords
- international
- circuits
- distance telephone
- long
- entry
- 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
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Mejoras en centrales telefónicas de larga distancia que comprenden circuitos internacionales de entrada, circuitos nacionales accesibles desde dichos circuitos internacionales de entrada, circuitos internacionales accesibles desde dichos circuitos internacionales de entrada, puestos de operador internacionales y medios discriminadores en dichos circuitos nacionales, pero no en dichos circuitos internacionales. Adaptados para responder a una señal que entre por un circuito internacional de entrada para llamar a un operador internacional.Improvements in long distance telephone exchanges that include international entry circuits, national circuits accessible from said international entry circuits, international circuits accessible from said international entry circuits, international operator posts and discriminatory means on said national circuits, but not on said international circuits. Adapted to respond to a signal that enters through an international incoming circuit to call an international operator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7405/46A GB642527A (en) | 1946-03-09 | 1946-03-09 | Improvements in or relating to telecommunication switching systems |
Publications (1)
Publication Number | Publication Date |
---|---|
ES178725A1 true ES178725A1 (en) | 1947-09-01 |
Family
ID=38463027
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0178739A Expired ES178739A1 (en) | 1946-03-09 | 1947-07-02 | IMPROVEMENTS IN OR RELATED TO TELECOMMUNICATION CENTRALS AND CORDLESS PANELS FOR OPERATORS |
ES0178725A Expired ES178725A1 (en) | 1946-03-09 | 1947-07-02 | IMPROVEMENTS IN OR RELATED TO LONG-DISTANCE TELEPHONE CENTERS |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0178739A Expired ES178739A1 (en) | 1946-03-09 | 1947-07-02 | IMPROVEMENTS IN OR RELATED TO TELECOMMUNICATION CENTRALS AND CORDLESS PANELS FOR OPERATORS |
Country Status (1)
Country | Link |
---|---|
ES (2) | ES178739A1 (en) |
-
1947
- 1947-07-02 ES ES0178739A patent/ES178739A1/en not_active Expired
- 1947-07-02 ES ES0178725A patent/ES178725A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES178739A1 (en) | 1947-09-01 |
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