Losing Customers: cf fake Domain parking and evil DNS
Convinced that it should be subscribers, rather than the operator, who chose who was called—anecdotally, Strowger's undertaking business was losing clients to a competitor whose telephone-operator wife was intercepting and redirecting everyone who called Strowger—he first conceived his invention in 1888, and patented the automatic telephone exchange in 1891. It is reported that he initially constructed a model of his invention from a round collar box and some straight pins.
Certainly that's what I was told in the 1970s,