Description: The analysis of tendency is conducted, and also perspective directions of development of the digital systems of telecommunications and networks. Possibilities of providing of different services of telecommunications digital networks are explored. The dynamics of growth of users of services of telecommunications and middle intensity of informative stream is explored. Comparative research of dignities and lacks of different technologies of passing to information is conducted. A conclusion is done about the necessity of decision of task of optimization of distributing of flows of data for the complete use of accessible resources of the systems of telecommunications and networks.
Keywords: systems of telecommunications and networks, digital flow lines, switching of channels, commutation of packages