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.)
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Societe des Compteurs de Geneve SODECO
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Societe des Compteurs de Geneve SODECO
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Publication date
Application filed by Societe des Compteurs de Geneve SODECOfiledCriticalSociete des Compteurs de Geneve SODECO
Publication of ES404018A1publicationCriticalpatent/ES404018A1/es
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
H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
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Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Computer Security & Cryptography
(AREA)
Computer Networks & Wireless Communication
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
ES404018A1971-06-211972-06-19Un aparato contador de tasas para instalaciones telefonicascon computo automatico de las tasas.
ExpiredES404018A1
(es)
Una disposicion de circuito para instalaciones de telecomu-nicaciones gobernadas centralmente, en especial instalacio- nes de comunicaciones telefonicas.
Circuit pour installations de télécommunication, en particulier installations téléphoniques, comportant des dispositifs d'identification automatique des communications
Schaltungsanordnung für Fernmeldevermittlungsanlagen, insbesondere Fernsprechvermittlungsanlagen, mit für zweidrähtige Durchschaltungen ausgelegten Vermittlungsschalteinrichtungen
Una disposicion de circuito para instalaciones de telecomunicaciones, en especial de telefonia, en las que las cifras elegidas por los abonados son almacenadas en registros.