Yeastar S412 Modular IP-PBX – Customizable VoIP Solution for Small Businesses The Yeastar S412 is a powerful, modular IP-PBX system designed for small offices, offering flexible telephony integration and enterprise-grade features in a compact form. Key Features & Benefits: Modular Design: Customizable with up to 4 analog ports (FXS/FXO), 1 GSM/3G/4G channel, and 8 VoIP users, making it easy to scale according to your specific needs. Up to 20 Users & 8 Concurrent Calls: Supports growing teams with efficient call handling and smooth communication flow. VoIP & PSTN Integration: Seamlessly bridges analog lines, VoIP trunks, and mobile networks to future-proof your communication system. Intuitive Web Interface: Easy-to-use management portal for configuration, monitoring, and system updates—no technical background needed. Built-in Call Features: Includes call forwarding, IVR, voicemail to email, call recording, auto-attendant, and more for professional-grade communication. Energy-Efficient Fanless Design: Compact, silent, and reliable hardware perfect for office environments. Advanced Security: Features firewall protection, TLS/SRTP encryption, and auto defense mechanisms to safeguard your communication network. Remote Management Ready: Supports Yeastar Remote Management for centralized system monitoring and troubleshooting without on-site visits. With its modular architecture and enterprise-level capabilities, the Yeastar S412 IP-PBX is the ideal communication platform for small businesses looking to enhance efficiency, reduce costs, and stay connected across multiple channels.