Programmable telephone switcher

Details Programmable telephone switcher Programmable telephone switcher

H - Electricity

04

M

344/13

H04M 1/72 (2006.01) H04M 1/665 (2006.01) H04M 1/723 (2006.01)

Patent

CA 1254639

Abstract The programmable telephone screening device routes an incoming call to a selected telephone device, depending on preestablished device priorities and upon access codes dialed by the caller. The device provides call hold, call forwarding and automatic dialing and is capable of testing the telephone utility network to determine DTMF and pulse dialing compatability. The device generates ringer signals for directly energizing the ringer circuits of standard telephone devices.

518072

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