Devices and equipment for telecommunications under the code OKPD2 26.51.44.000 are included in the list of foreign radio-electronic products with restricted access, and in the list of prohibited foreign goods. You can't use them at the same time.
The agency explained: when purchasing goods under the named code for state (municipal) needs, a restriction is established, and for the needs of the country's defense and state security — a ban.
Document:
Letter of the Ministry of Industry and Trade of the Russian Federation dated 23.12.2020 N 101618/12