Instead, its impact was more indirect because the main way in which the telegraph improved American life during this time was by making it easier for big businesses to operate. Railroads used telegraphs a lot because they needed to be able to communicate instantly between far-flung stations.
During World War II the telegraph system was used extensively with the troops and their leaders as a way to communicate inconspicuously over long distances.
They where extremely helpful during those times now they are very rare to come across .
I hope this helps- brycefoster