After Bloomberg reported that RingCentral had hired an adviser after drawing buyout interest, SunTrust analyst Terry Tillman says the company could be acquired for a price in the mid $50s per share range " if the company's value proposition is viewed as a knowledge worker/business productivity platform versus simply business phone systems." The analyst recommends that investors focused on the company's fundamentals own the stock. "based on strong top-line growth and expanding margins and cash flow." He keeps a $47 price target and a Buy rating on the shares.