Belousov and Austin held a phone conversation about the situation in Ukraine in mid-July.
"I can say that by some indications, the signal that was sent from the Russian side to Washington and, I take it, not only to Washington but also to some other capitals controlled by Washington, has reached Washington. We have avoided a new escalation," Ryabkov told the Russian media.
Moscow will not "make concessions" to Washington if they try to impose something that favors only the US, the diplomat added.
"I'm still in favor of avoiding escalation proactively, but scenarios in which a step towards escalation is in fact possible are certainly being considered," Ryabkov said.