The Yeastar S-Series is a robust, feature-rich VoIP PBX family built to help small and medium businesses dramatically improve communications efficiency and cut costs. Combining enterprise-grade telephony, unified communications, and a field-upgradable modular architecture, the S-Series lets organizations connect legacy PSTN and ISDN trunks, SIP/VoIP providers, and cellular networks within a single, manageable platform.
Unified Communications & Flexibility
The S-Series unlocks unified communications across desktop, mobile and IP phones, supporting integrations such as presence, instant messaging, conferencing, and CTI. Its modular design enables flexible expansion—add FXS/FXO/BRI modules, PRI/E1/T1 interfaces, or GSM/3G/4G channels as your needs grow—so you only invest in what you need today and can scale without forklift upgrades.
Easy Deployment & Management
Designed for rapid rollout, the S-Series offers auto-provisioning, plug-and-play module detection, and an intuitive Metro UI for point-and-click configuration from anywhere. Centralized management tools simplify tasks like remote provisioning, firmware updates, and multi-site administration, reducing deployment time and ongoing maintenance overhead.
Reliable Hardware & Future-Proof Design
Built on industrial-grade components—quad-core processors and TI DSP voice processors—the S-Series delivers stable call handling and high concurrent call capacity. Long-life power supplies and lightning protection increase resilience in demanding environments. Regular free software updates extend capabilities and maintain compatibility with evolving standards.
Security, Availability & Operational Assurance
Security and uptime are core design goals: the S-Series includes an internal firewall, support for TLS/SRTP encryption, advanced failover and high-availability options, plus monitoring and reporting features. These capabilities protect communications and provide administrators with visibility and control to quickly detect and respond to issues.
