Yeastar S20

Yeastar S20

The Yeastar S20 is a compact, high‑performance IP‑PBX designed to provide reliable voice communication for small and medium‑sized enterprises. It supports up to 20 simultaneous extensions, making it an ideal solution for growing businesses that require scalable telephony infrastructure.

Core Features

• SIP (RFC3261) – The S20 uses the industry‑standard SIP protocol, ensuring seamless integration with a wide range of VoIP services and devices.
• IAX2 – In addition to SIP, the device supports IAX2 for efficient trunking between Yeastar PBXs or other compatible systems.
• Up to 20 Extensions – Each extension can host a dedicated phone line, voicemail, IVR menu, and more.
• No FXS/FXO Ports – The S20 focuses on pure VoIP connectivity; it does not include analog telephone ports.
• Zero GSM Support – The device is purely digital, eliminating the need for cellular integration.
• Power Supply – Operates from a 12 V DC 1 A source, providing reliable power in various environments.
• Low Power Consumption – Standard operation draws only 1.8 W, making it energy efficient and cost‑effective.
• Operating Humidity – Designed for relative humidity between 10 % and 90 %, suitable for most indoor office settings.

Installation & Deployment

The S20 is engineered for straightforward deployment. It can be mounted on a wall or placed on a desk, thanks to its compact form factor. The device connects directly to your network via Ethernet, eliminating the need for additional gateways or converters.

• Network Connectivity – A single RJ45 port provides both power (via PoE if supported) and data connectivity.
• Configuration Interface – Access the web‑based management console through a browser. The interface offers intuitive menus for setting up extensions, trunks, voicemail, and IVR scripts.
• Firmware Updates – Yeastar regularly releases firmware updates that enhance security, add new features, and improve stability. Updates can be applied via the web console or through an FTP server.

Use Cases

• Small Offices – Ideal for companies with 5–20 employees needing a reliable internal phone system.
• Branch Offices – Deploy the S20 as a local PBX that connects to a central VoIP service or another Yeastar PBX via IAX2.
• Remote Work Environments – Employees can use softphones or SIP‑compatible devices to connect securely over the internet.
• Voicemail & IVR Solutions – The S20 supports built‑in voicemail and interactive voice response, enabling automated customer interactions.

Technical Specifications Summary

Benefits for Your Business

• Scalability – Add or remove extensions as your team grows without re‑engineering the entire system.
• Cost Efficiency – Low power usage and minimal hardware requirements reduce operational expenses.
• Reliability – Built with industrial components, the S20 offers high uptime in typical office environments.
• Simplicity – The web interface and straightforward setup process mean less IT overhead.
• Future‑Proofing – Support for SIP and IAX2 ensures compatibility with emerging VoIP services and protocols.

Conclusion

The Yeastar S20 delivers a robust, feature‑rich IP‑PBX solution that balances performance, flexibility, and ease of use. Its low power consumption, support for modern VoIP standards, and scalable architecture make it an excellent choice for businesses looking to establish or upgrade their internal communication infrastructure.