In 1997 the transit network was formally recognized as an international tool. On 17 January 1997 the CIS heads of government signed an agreement on cooperation in developing and using mobile communication systems at a Moscow summit. The document defined and interpreted the term “transit network” as “a system that provides the transmission of information via the communication channels from one state to another through other countries as intermediates”.

In April 1997 MTT launched two more transit nodes, one in Novosibirsk and one in Samara.

In autumn 1997 the Board of the State Telecommunications Commission of Russia adopted a basic approach to creating GSM-1800 networks in Russia. Later it helped save costs while creating GSM networks and use frequencies more rationally, especially in large cities.