Rakuten Viber to increase video call capacity stockbot 0 424 2021.04.28 20:00 http://vietnamnews.vn/economy/935432/rakuten-viber-to-increase-video-c… + 30 https://vietnamnews.vn/rss/economy.rss + 13 Rakuten Viber is set to expand its group video calling capacity to 30 participants in response to growing demand and usage.