European Union introduces a ban on technology transfer to Russian state-controlled telecommunications operators. Rostelecom emphasizes that they have a fully ruble-denominated portfolio and have been actively engaged in import substitution for several years. Experts believe that the companies will not be able to fully substitute some European solutions. The largest European suppliers of equipment for mobile networks in Russia were Ericsson and Nokia. However, in recent years, their share has been decreasing under pressure from China's Huawei.