New international switching and transmission plan recommended by the CCITT for public telephony

In order to lay the foundation of a worldwide telephone network that will eventually provide fully automatic international subscriber dialling between any two subscribers anywhere in the world, the CCITT, at its 3rd Plenary Assembly in 1964, recommended the principles of new routing, numbering, switching and transmission plans for international public telephony. The paper briefly describes the routing plan and gives a more detailed explanation of the switching and transmission aspects of the new recommendations.