Accoding to a report by thefusejoplin.com, "the leaked images of the upcoming user interface shows that the app has been enabled with other language translations which will be displayed at the time a person receives a call via WhatsApp." The translation feature, which is available in the latest version of WhatsApp implies that the voice calling plug-in is on it's way.
WhatsApp's new owner Facebook, however, shows no sign of such an app. The mobile app has witnessed a 15 percent rise in its traffic since the announcement that Facebook is acquiring the service. In fact, WhatsApp has crossed 50 million active users in India alone.