In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. 1998 - the number of points of money transfers worldwide reached 50,000. The network of money transfers of Western Union is the world's largest. In 1920, Western Union has implemented the world's first transmission of images over the ocean. The size of the commission fee for the transfer is charged according to the Western Union tariffs and depends on the amount of money sent. Payment systems are one of basic elements of infrastructure of e-commerce.