Toll Lines

Hawkins' Electrical Dictionary · 1915 · p. 3
—In telephone circuits, the term, “toll line,” is used to designate a trunk line between exchanges, which may have a number of private telephones bridged in its length, or where a party line telephone circuit has its terminals in a central exchange switchboard. This designation is said to be derived from the fact that each separate telephoner on the circuit is charged for every occasion on which he uses the line, Just as formerly persons driving on country roads pai a designated fee, at the various toll gates they might pa , for the maintenance and repair of the highway. Also, where the term is applied to a trunk line, as stated above, it is proper from the fact that such Jines, frequently leading to exsel he conducted by other companies, involve an additional “toll,” or charge, to the subscribers using them.
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