BELMONT, Calif.--(BUSINESS WIRE)--RingCentral, Inc. (NYSE: RNG), a leading provider of cloud business communications solutions, today announced financial results for the second quarter ended June 30, 2015. Second Quarter Highlights: Revenue increased 34% year-over-year to $70.7 million; subscription revenue increased 35% year-over-year to $64.4 million. Total annualized exit monthly recurring subscriptions grew 35% year-over-year to $274.6 million. RingCentral Office® annualized exit monthly re