Easy to Use and Manage

All-inclusive Features

Uncompromised Security

Unified Communications

Remote Management

Perfect Integration

One Platform All Communications

Experience the ultimate convenience of doing business anywhere, on any device with S-Series VoIP PBX to work with Yeastar Linkus UC softphone and Linkus Cloud Service. Gain the advantage over your competition by combining voice, instant messaging, conferencing, presence, and more…all from one single platform.


All office extension feature

Instant messaging & file sharing

CRM integration


One number on all devices

Our Awards :

Unparalleled Ease of Use and Management

With an intuitive browser-based interface and a robust set of management tools, productivity soars as you focus on your business, not your phone system.

Scalable Modular Design

Flexible combination of telephony interfaces & Easy future expansion.

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.

Excellent Interoperability

Use Your Existing IP Phones, SIP Trunk... all at your choice

Powerful Remote Management

Benefit from a highly secure platform to monitor and manage your PBX system(s) remotely and centrally. Whether you are a phone system end user or a IT reseller, Yeastar Remote Management tool is here to free you from technical headaches and reduce IT & maintenance costs.

Which S-Series VoIP PBX Model is Right for You?


  • 20 Users
  • 10 Concurrent Calls
  • Max FXS Ports : 4
  • Max FXO/BRI Ports : 4
  • Max Cellular Ports : 1
  • 20 VoIP Trunks


  • 50 Users
  • 25 Concurrent Calls
  • Max FXS Ports : 8
  • Max FXO Ports : 8
  • Max Cellular Ports : 4
  • 50 VoIP Trunks


  • Up to 200 Users
  • Up to 60 Concurrent Calls
  • Max FXS Ports : 16
  • Max FXO Ports : 16
  • Max Cellular Ports : 4
  • Max E1/T1/J1 Ports : 2
  • 100 VoIP Trunks

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