Which two Massachusetts locations were linked by the first commercial telephone line for regular business use in 1878?
Answer
Boston and Somerville
While the first successful spoken connection was an experiment, the move toward regular utility is marked by the first commercial telephone line connecting two established points for business use. This distinction is typically awarded to the installation completed in 1878 linking Boston and Somerville in Massachusetts. This commercial application was a vital step, transforming the telephone from a laboratory curiosity into an essential piece of communication infrastructure necessary for ongoing business operations, distinguishing it from earlier one-off experimental setups.
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