Rostelecom is Russia's leading long-distance telephony provider. Domestic long-distance service provides about 50% of the company's revenue; and international long-distance calls provide about 25%.
Rostelecom interconnects all local public operators’ networks into a single national network for long-distance service. In other words, if one makes a long-distance call or originates Internet contact to or from Russia, it is likely that Rostelecom is providing part of the service. The company's stock trades primarily on the Moscow Exchange.