S-Series VoIP PBX - Business Phone System | Yeastar

Yeastar S-Series VoIP PBX

Meet Your Next VoIP PBX


Up to 12 FXS Extensions
Up to 4 CO/BRI lines

S20 voip pbx


Support 20 Users
10 Concurrent Calls

S50 voip pbx


Support 50 Users
25 Concurrent Calls

S100 voip pbx

Up to 200 Users
Up to 60 Concurrent

S300 voip pbx

Up to 500 Users
Up to 120 Concurrent

Easy Configuration and Management

Fast installations with advanced auto-configuration, auto-detect and plug and play capabilities. Control your phone
system with intuitive Web GUI. Instantly alert through email, SMS, and phone call.
Managed easily from PC, phone, or any Internet-enabled device.

live demo

Excellent Interoperability

Linkus Mobile Client

Linkus Mobile Client

Coordinated with S-Series VoIP PBX, Linkus Mobile Client makes
your Android or iOS mobile phone an office extension and links
you and your colleagues and customers anywhere anytime.

Learn More
Telephony Modules

Telephony Modules
FXS extensions module, FXO module,
PSTN fallback module, BRI module,
and GSM/3G/4G module.

Expansion Boards
Supports 4 modules in one EX08 Expansion
Board Supports 1 E1/T1/PRI port in one
EX30 Expansion Board.

System Capacity
Expand SIP users and concurrent
calls when your business grows
with DSP Module.

s-series feature bg

Robust Feature Set for All of Your Calling Needs

The Yeastar S-Series is designed to help you grow your business by providing plenty business-enhancing
system features and functions. Learn more about the business-enhancing features.

All-inclusive features without extra licensing fees plus a unique App Center that can add and manage features independently.

app center for pbx

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