I’m sure he took his advice.
Check it out:

President Obama held an hour-long phone conversation with Russian President Vladimir Putin Thursday afternoon to discuss the ongoing crisis in Ukraine.

Obama emphasized to Putin that Russia’s military incursion into Ukraine’s Crimean peninsula violated the country’s sovereignty, “which has led us to take several steps in response, in coordination with our European partners,” Obama said in a White House statement.

Obama also outlined a diplomatic solution to the ongoing unrest, which would include direct talks between the Ukraine and Russia governments, ensuring Russian forces return to their bases and installing international monitors to protect the rights of all Ukrainians.