It has been about a month since the last earnings report for RingCentral (RNG) . Shares have added about 14.3% in that time frame, outperforming the S&P 500.Will the recent positive trend continue leading up to its next earnings release, or is Ringcentral due for a pullback? Before we dive into how investors and analysts have reacted as of late, let's take a quick look at its most recent earnings report in order to get a better handle on the important drivers. RingCentral Q4 Earnings Top Estimates, Revenues ...