Intercom system for a key telephone system

Details Intercom system for a key telephone system Intercom system for a key telephone system

H - Electricity

04

Q

344/19, 379/33,

H04Q 3/42 (2006.01) H04M 3/42 (2006.01) H04M 9/04 (2006.01) H04M 11/02 (2006.01)

Patent

CA 1069630

AN INTERCOM SYSTEM FOR A KEY TELEPHONE SYSTEM Abstract of the Disclosure A call selector circuit is coupled to all of a plurality of intercom stations and is responsive to a call initiating signal from one of the plurality of stations to provide a first portion of a connection to another of the plurality of stations. A call routing circuit is coupled to the selector circuit to establish a second portion of the connection. A diode matrix is coupled to the routing circuit to establish a third portion of the connection. A relay matrix is coupled to the diode matrix and all of the plurality of stations to complete the connection and enable a calling party in the vicinity of the one of the plurality of stations to page a called party in the vicinity of the another of the plurality of stations. In addition the call selector and the relay matrix cooperate to provide an "all page" mode of operation by establishing a connection between all of the plurality of stations to enable the calling party to page the called party at all of the plurality of stations. - 1 -

277797

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