Method of and apparatus for off-hook signalling between...

H - Electricity – 04 – M

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Details

H04M 9/02 (2006.01) H04M 1/57 (2006.01) H04M 1/72 (2006.01) H04M 1/723 (2006.01) H04M 3/22 (2006.01) H04M 3/428 (2006.01) H04Q 1/30 (2006.01)

Patent

CA 2232349

When two or more telephone sets are in use on the same subscriber's loop, their activities may not be properly detected or monitored by the central office switch. The present invention provides a method of, and an apparatus for, coordinating the signaling activities so that a hook flash or "Link" can work. A telephone set of the invention senses and synchronizes hook flashes of another set on the same loop so that a coordinated hook flash or "LINK" can be properly detected by the office switch.

Lorsque deux postes téléphoniques ou plus sont utilisés sur la même ligne d'abonné, il est possible que leur fonctionnement ne soit pas perçu ou suivi correctement par le commutateur du central. L'invention concerne un procédé et un appareil servant à coordonner les activités de signalisation de façon à rendre possible l'établissement d'une liaison par interruption-éclair ("hook-flash"). L'appareil téléphonique décrit détecte et synchronise les interruptions-éclairs commandées par un autre poste sur la même ligne, si bien qu'une interruption-éclair pour établissement d'une liaison peut être correctement détectée par le commutateur du central.

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