Private telephone system with simplified command feature

Details Private telephone system with simplified command feature Private telephone system with simplified command feature

H - Electricity

04

Q

H04Q 5/20 (2006.01) H04M 3/42 (2006.01) H04M 9/00 (2006.01) H04Q 3/62 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2073066

A key telephone system (120), having ports (22) for connection to telephone lines of a telephone exchange and ports (12) for connection of terminal apparatus including key telephone sets (125), is provided with the ability to distinguish if an intended call or feature access involves more than the key telephone system. If so, a signalling protocol of the telephone exchange is emulated on behalf of the terminal apparatus and transmitted via one of the telephone lines whereby the progress of the call or feature access continues, as if a user of the terminal apparatus had initiated the signalling protocol of the telephone exchange.

Un système téléphonique à poussoirs (120), doté de ports (22) pour le raccordement aux lignes téléphoniques d'un central et de ports (12) pour le raccordement de dispositifs terminaux, y compris de postes téléphoniques à poussoirs (125), peut distinguer si un appel projeté ou l'accès à une fonction implique plus que le système proprement dit. En l'occurrence, un protocole de signalisation du central est émulé pour le dispositif terminal et transmis sur l'une des lignes téléphoniques, ce qui permet à l'appel ou à l'accès de se poursuivre comme si un utilisateur du dispositif terminal avait demandé le protocole de signalisation du central.

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