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Machine translation
1. (WO1979001145) MONITORING DEVICE FOR MONITORING TELEPHONE CALLS COMING THROUGH A SUBSCRIBER STATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/001145    International Application No.:    PCT/CH1979/000076
Publication Date: 27.12.1979 International Filing Date: 25.05.1979
IPC:
H04M 1/665 (2006.01)
Applicants:
Inventors:
Priority Data:
5878/78 30.05.1978 CH
Title (EN) MONITORING DEVICE FOR MONITORING TELEPHONE CALLS COMING THROUGH A SUBSCRIBER STATION
(FR) DISPOSITIF DE CONTROLE DES APPELS TELEPHONIQUES ARRIVANT A UNE STATION D"ABONNE
Abstract: front page image
(EN)The object of the device is to monitor telephone calls coming through a subscriber station before they are transmitted to this station. It comprises switching means (RL1, RL2, RL3) aimed at being connected to the subscriber line, reception and detection means (RF1, RF3, RF5) of a coded sound frequency signal transmitted by the subscriber line and control means for controlling the switching means, associated to the detection means altogether assembled so as to connect the subcriber line to the station after reception and detection of the coded signals. The device is aimed at being connected on any subscriber station.
(FR)Le dispositif a pour but de controler les appels telephoniques arrivant a une station d"abonne avant de les transmettre a cette station. Il comprend des moyens de commutation (RL1, RL2, RL3) destines a etre branches sur la ligne de l"abonne, des moyens de reception et de detection (RF1, RF3, RF5) d"un signal de frequence sonore, code, transmis par la ligne de l"abonne, et des moyens de commande des moyens de commutation, associes aux moyens de detection, le tout de maniere a relier la ligne d"abonne a la station apres reception et detection du signal code. Le dispositif est destine a etre branche sur toute station d"abonne.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)