In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. Western Union has several divisions, with products such as person-to-person money transfer, money orders, business payments and commercial services. In 1935, Western Union has put into operation first intercity fax communication. Each money transfer is protected with control number, that allows you to track and to ensure prompt payment of money specified by you person.