The DINSTAR UC120-1S1O VoIP PBX is a robust phone system designed specifically for small and medium-sized enterprises (SMEs). It aims to enhance productivity, improve efficiency, and reduce telephony and operational costs. By providing versatile connectivity options such as FXO (CO), FXS, and VoIP/SIP, the UC120 serves as a converged platform that empowers businesses with state-of-the-art technology and enterprise-class features. The UC120 supports up to 60 SIP users and allows for 15 concurrent calls, ensuring that SMEs can handle their communication needs effectively. It offers flexibility in terms of connectivity with options like 1 FXS, and 2 FXO interface. In the event of IP/SIP failure, the UC120 supports failover capabilities, enabling uninterrupted communication. Multiple SIP trunks can be configured, providing flexibility in connecting with different service providers. The UC120 also supports Fax over IP (T.38 and Pass-through) for fax communication. The UC120 incorporates TLS/SRTP security protocols to safeguard communication channels. It also offers built-in VPN functionality, allowing for secure remote access. The UC120 comes packed with comprehensive VoIP features that cater to the needs of SMEs. It supports call recording, voicemail, call forking, auto CLIP (Calling Line Identification Presentation), black/white lists, auto attendant, and conference calls. These features contribute to efficient call management and enhance the overall communication experience.