H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 1/20 (2006.01) H04M 3/22 (2006.01)
Patent
CA 2046259
In a communications system having components which are interconnected via communications links, the system is provided with the capability of responding to the application of a predetermined test signal to a link with information which identifies that link. Such information can take a variety of forms including the name of one or more persons assigned to use the link, and/or the telephone number or numbers associated with the link. This capability greatly reduces the time and expense associated with the maintenance and testing of a variety of communications systems, such as PBXs and central office switching machines.
Bertsch Charles James
Biggs John T.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
LandOfFree
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