Freshly acquired by Facebook (FB) for an eye-popping $19 billion, the messaging service WhatsApp has announced another noteworthy development. Speaking at this year’s Mobile World Congress in Barcelona, the tech company’s chief executive, Jan Koum, announced that the new Facebook company is working on adding free voice-calling into the WhatsApp messaging app in the second […]
View the full post at: WhatsApp to Offer Free Voice Calling by Mid-year : CEO