Is it possible to achieve stable communication inside multi-storey buildings?
There are now special (500 mVt) repeaters that amplify cellular signals that can be used to achieve stable communications in the field. These repeaters are recommended to be used in accordance with the Decision of the Republican Council on Radio Frequencies No. 256 of 2011, strictly using the services of qualified specialists for their installation. Otherwise, such randomly installed repeaters will cause radio interference in the operation of mobile base stations close to them.