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How did a line finder actually work?

Started by DarrenWGaransi, June 26, 2016, 04:27:29 AM

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DarrenWGaransi

Hello Everyone,

In the step by step exchange, how did the line finder switch know to ratchet up and over to your line when one lifted the receiver to make a call? What if more than one subscriber picked up their calling receiver at the same time but both were connected to that line finder? What would happen then?