The number of local telephone conversations grew 46.8 percent between 1920 and 1930, while the number of long distance conversations grew 71.8 percent over the same period. There were 5 times as many long distance telephone calls as telegraph messages handled in 1920, and 5.7 times as many in 1930. the share of all households with a telephone rose from 35 percent to nearly 42 percent. In cities across the nation, AT&T consolidated its system, gained control of many operating companies, and virtually eliminated its competitors. It was able to do this because in 1921 Congress passed the Graham Act exempting AT&T from the Sherman Act in consolidating competing telephone companies.

Surprisingly there was a decline in telephone use on the farms during the twenties. Rising telephone rates explain part of the decline in rural use. The imposition of connection fees during the First World War made it more costly for new farmers to hook up. As AT&T gained control of more and more operating systems, telephone rates were increased. AT&T also began requiring, as a condition of interconnection, that independent companies upgrade their systems to meet AT&T standards. Most of the small mutual companies that had provided service to farmers had operated on a shoestring—wires were often strung along fence posts, and phones were inexpensive “whoop and holler” magneto units. Upgrading to AT&T’s standards raised costs, forcing these companies to raise rates.

However, it also seems likely that during the 1920s there was a general decline in the rural demand for telephone services. One important factor in this was the dramatic decline in farm incomes in the early twenties. The second reason was a change in the farmers’ environment. Prior to the First World War, the telephone eased farm isolation and provided news and weather information that was otherwise hard to obtain. After 1920 automobiles, surfaced roads, movies, and the radio loosened the isolation and the telephone was no longer as crucial.

The invention of the telegraph (1837) by Samuel Morse and the telephone (1876) by Alexander graham Bell were milestones in the quest to communicate over great distances with reliability, accuracy and speed. Previously, communication over distance necessarily entailed encoding humans thought through suck means as drum and smoke signals, semaphores and trumpets, or physically transporting written messages by carrier pigeons and human travel