Simulating changes in telephone subscriber line

Details Simulating changes in telephone subscriber line Simulating changes in telephone subscriber line

H - Electricity

04

M

H04M 3/26 (2006.01) H04Q 7/34 (2006.01)

Patent

CA 2219436

A fixed wireless access subscriber unit containing a wireless transceiver and a telephone subscriber line interface circuit which supports privacy and remote release of hold between the subscriber unit and extension telephones are disclosed. The subscriber unit detects when the primary handset, or an extension telephone set goes off-hook. In response the subscriber unit modifies the voltage and/or current characteristics on the telephone subscriber line which connects the extension sets to the subscriber unit in such a manner that extension sets connected to the telephone subscriber line will sense when the primary handset goes off-hook.

Unité fixe d'accès sans fil pour abonné, contenant un émetteur-récepteur sans fil et un circuit d'interface de ligne téléphonique d'abonné permettant la confidentialité des appels et le relâchement à distance de la mise en garde entre l'unité d'abonné et des postes supplémentaires. L'unité d'abonné détecte le décrochage du combiné principal ou d'un poste supplémentaire. En réponse, elle modifie les caractéristiques de tension et(ou) de courant de la ligne d'abonné qui relie les postes supplémentaires au poste de l'abonné de façon que les postes supplémentaires connectés à la ligne d'abonné détectent le décrochage du combiné principal.

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