Description S20 Yeastar S-Series IP PBX The Yeastar S20 S-Series IP PBX is an advanced yet compact communication system designed for small businesses that need an affordable, scalable, and flexible telephony solution. Capable of supporting up to 20 users and offering a combination of analog and VoIP capabilities, this device enables businesses to integrate traditional phone lines with modern digital communication methods. It features 1 FXS port for analog devices and 1 FXO port for a PSTN line, allowing businesses to connect both VoIP and legacy equipment seamlessly. Equipped with a user-friendly web-based management interface, the Yeastar S20 simplifies setup and ongoing administration, even for users without IT expertise. The system supports advanced…