An event capture and notification system (ECN), and applications thereof. In an embodiment, the ECN permits communication between customer premises equipment (CPE) and a server (such as a back-end server) of a service provider. The real-time ECN system includes a method for communicating real-time notifications between a CPE device and a server. The ECN system may include methods and components to communicate captured events through a communication channel by which client device events may be transmitted in real time to a server, and vice versa. The ECN system may include a full-duplex communication channel for communicating events. By the ECN system, communication between a CPE device and a server may be realized efficiently and timely.