To be frank I listed those just as examples: no idea which of those have their equipment installed at Beltelecom, but they are commonly used in similar setups. There is little point in being accusatory: the surveillance features were developed as a part of legal compliance to their respective jurisdictions, then spread worldwide.

IMHO it is best to treat corporations as a force of nature, which however can be loosely directed by legislation. People staffing them might be all fine as individuals, but the requirements of market and governments can produce socially unwelcome outcomes.