The Dinstar DAG1000-4O is a powerful and reliable 4 Port FXO Gateway designed for seamless PSTN to VoIP integration. It allows businesses to connect traditional analog telephone lines with modern IP PBX and SIP-based communication systems, making it an ideal solution for offices, hotels, call centers, and enterprise environments Equipped with 4 FXO ports, the gateway ensures stable voice communication, intelligent call routing, and high-quality SIP connectivity. The DAG1000-4O supports multiple VoIP protocols and works smoothly with leading IP PBX platforms, helping organizations reduce communication costs while improving operational efficiency.