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Telephone Systems / Yeastar

Yeastar S20

The Yeastar S20 is a compact IP PBX designed for small businesses with up to 20 users. It delivers robust features such as VoIP, traditional line support, cellular integration, IVR, call recording, all within a user-friendly interface and remote management. It is ideal for organizations seeking a complete solution without the hassle of additional license fees.

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Yeastar S20

Main features

  • Supports up to 20 users and 10 concurrent calls.
  • Connects up to 4 FXS/FXO/BRI ports depending on installed modules.
  • One GSM/3G/4G channel for mobile integration/modems.
  • Up to 20 VoIP trunks.
  • Intuitive graphical user interface, SIP phone auto-provisioning, remote management, and secure control panel.
  • Unified communications (UC) features supported: messaging, voicemail, IVR, etc., with no hidden fees.

Technical specifications

Maximum Users

20

Maximum Concurrent Calls

10

Maximum VoIP Trunks

20

Maximum FXS/FXO/BRI Ports

4

GSM/3G/4G Mobile Channels

1

Transport Protocols

SIP, TLS, SRTP, etc.

Ethernet Interfaces

Typically 2 × Ethernet ports (10/100)

Dimensions and Mounting

Compact design for desktop / basic mounting

Power Consumption

Low consumption, depending on installed modules

About the brand

Yeastar is a global manufacturer of IP telephony and unified communications (UC) solutions, with a strong focus on IP PBXs for both small/medium-sized businesses and larger implementations. Its systems are known for being modular, easy to manage, integrating UC functions, offering strong security, and robust remote support—making them a reliable choice for businesses seeking performance and simplicity.

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