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VoIP Calls Introduced by Biggest Mobile Messaging App

/ News and Updates, Telecoms & Data

Back in 2007, two Yahoo! employees took a break from work to go travelling in South America with their savings. This trip was to spark discussions about a new mobile application based on status updates. Two years later, Jan Koum and Brian Acton founded WhatsApp, which has now evolved into the biggest mobile messaging app in the world. After an international beta trial, and an invite-only version of their new update, WhatsApp have now added VoIP calls into the mix for their 700 million monthly active users.
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