Yes, it does. I can even tell you what it says:
"Whether we wanted it or not, we've stepped into a war with the Cabal on Mars. Let's get to taking out their command one by one. Valus Ta'aurc. From what we can gather, he commands the siege dancers from an imperial land tank outside of Rubicon. He's well protected. But with the right team, we can punch through those defenses, take this beast out, and break their grip on freehold."
That's a trick question designed to get someone to admit to actually whispering to the void, which no well-adjusted killing machine would ever do. I never whisper, even when my cat is asleep. It's undignified.
And no, it doesn't whisper back. It screams like a banshee on acid. Or so this friend of mine said. His name is Reginald. Reginald the Titan.
I whisper to the void, and in return I recieve the shrill screams of a thousand wills all seeking the final shape, to be the one to enact and observe it.
In short, it does not whisper back. It forces it's will into your mind and you will know nothing else. You may even dream of jagged teeth dragging you to the end. You will not have dreams otherwise.
I do not advise communing with it.