The document discusses the challenges facing mobile network operators, including increased competition, regulatory pressures, and the rise of over-the-top communications apps. It notes that operators' average revenue per user is declining as a result. The document considers how operators can respond to the threat from OTT apps, including by developing their own OTT services, partnering with OTT players, or committing to Rich Communication Services. A survey of operators found that most believe OTT apps are already negatively impacting their business and that RCS can help address this threat by providing an advanced messaging platform.