Key telephone system with enhanced connectivity

Details Key telephone system with enhanced connectivity Key telephone system with enhanced connectivity

H - Electricity

04

M

H04M 3/42 (2006.01) H04M 9/00 (2006.01) H04Q 11/04 (2006.01) H04M 1/57 (2006.01) H04M 3/428 (2006.01) H04M 3/44 (2006.01) H04M 3/48 (2006.01) H04M 3/537 (2006.01)

Patent

CA 2035357

A key telephone system which is operably responsive to digitally encoded service orders and instructions stored in a ROM of a switching facility in a local ISDN telephone exchange achieves enhanced connectivity by using a dedicated line that provides a digital signaling and supervision communications path which is exclusively an ISDN basic rate OB+D teleservice channel. A key switch unit of the system is connected to the exchange by POTS lines to provide conventional voice analog services to a plurality of its subscriber stations. Interfacing the key switch unit with the teleservice channel, a personal computer translates data downloaded from the switching facility into instructions recognized by the unit and enables individual subscriber stations with enhanced service connectivity features while displaying such features on a display unit of each station.

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