H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 3/24 (2006.01) H04M 1/24 (2006.01) H04M 3/30 (2006.01) H04M 11/04 (2006.01) H04Q 11/04 (2006.01)
Patent
CA 2214525
A system for monitoring the integrity of a telephone line connection between a central monitoring station and a subscriber's equipment which comprises: means for initiating transmission of an identification code from the subscriber's equipment along the telephone line to be monitored to the central monitoring station during an incoming ringing signal; recognition means responsive to said transmitted identification code for recognising the identification code; and means for dropping the line after said transmitted identification code has been recognised and before the line has been picked up.
Un système pour contrôler l'intégrité d'une ligne téléphonique reliant une station centrale de contrôle et un matériel chez un abonné comprend: un moyen pour initier la transmission d'un code d'identification provenant du matériel de l'abonné par la ligne téléphonique à contrôler et aboutissant à la station centrale de contrôle lors d'un signal d'appel entrant; un moyen de reconnaissance réagissant audit code d'identification transmis pour reconnaître le code d'identification; et un moyen pour couper la ligne après que le code d'identification a été reconnu et avant que la ligne n'ait été prise.
Drysdale Andrew James
Herrera Juan Sebastian
Blake Cassels & Graydon Llp
Pyronix Limited
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