If, after it was calibrated and tuned, the stargate had a device in it that would facilitate spoken communication between different peoples and cultures, if someone went from Earth to Planet A, then from Planet A to the Russian stargate, would that person then be able to communicate with a Russian even though neither spoke the other's native language? (Russians obviously had their own program, yet were able to communicate with offworlders in the same way the Americans did.) And could one travel from the American stargate directly to the Russian stargate?
The Stargate isn't like the Tardis; it doesn't translate. That's why in the Stargate movie, when they first go to Abydos, Jackson has to learn the language and translate for his team. The Russian teams would have a linguist on their team. If a team left Earth using the US Stargate, then returned using the Russian Stargate, they would have to speak Russian to be able to communicate.