In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. One of the common kinds of money transfer is a transfer via the international system of Western Union. In 1879 Western Union left the telephone business after losing a lawsuit against Alexander Graham Bell - the patent holder on the phone. In October 1871 the company Western Union began to provide money transfer services, drawing on its own extensive telegraph network. Western Union made so that the time in all of American civil services was the same.