OBS_VALUE: Mobile communication operators are not regulated as SMP unless they voluntarily file an application with the regulating authority to be considered as such and prove that they meet relevant criteria. As on 2021, register of operators having significant market power in the field of communications does not contain mobile operators: http://rkn.gov.ru/communication/register/p197/. However, mobile operators are mandated to provide interconnection and traffic transmission services to other operators.