WhatsApp’s voice call feature might be even closer than you think, with some new hints suggesting that we’ll be able to make in-app calls very soon. WPCentral was tipped off by volunteers who translate Hindi languages, confirming that they’d received new translation requests that hint at the new feature. Three new strings – Hang up, Incoming call and Outgoing call – are, we’d say, pretty obvious clues that WhatsApp is finalising voice calling.