The document discusses mobile virtual network operators (MVNOs) and provides an overview of the MVNO business model and regulatory environment in Brazil. It describes the key players in an MVNO value chain, including the MVNO, mobile network operator (MNO), and mobile virtual network enabler (MVNE). It also analyzes factors for MVNO success, international benchmarks, and aspects of integration between MVNOs and MNOs/MVNEs.