S-Series PBX System

Compare and choose the model of S-PBX Series
yeastar s20 front
yeastar s50 front
yeastar s100 front
yeastar s300 front

Quick setup

“Save time using user-friendly installations with auto-configuration, auto-detection and plug and play.”
yeastar s series catalog

Simple setup

Manage your phone system using the intuitive, graphical interface with the piont-and-click technique. Everything can be managed remotely as long as the Internet is available.

Scalable modular design


FXS, FXO PSTN fallback, BRI and GSM expansion modules

Expansion modules

EX08 expansion card for inserting 4 E1/T1/PRI EX30 modules

System capacity

D30 module to expand the number of users and similar calls.
Specifications S412 S20 S50 S100 S300
Users 20 20 50 Up to 200 Up to 500
Concurrent Calls 8 10 25 Up to 60 Up to 120
Max FXS Ports 12 4 8 16 24
Max FXO/BRI Ports 4 4 8 16 24
Max Cellular Ports 2 1 4 6 6
Max E1/T1/J1 Ports 2 3
Environment Operation Range: 0°C to 40°C, 32°F to 104°F; Storage Range: -20°C to 65°C, -4°F to 149°F; Humidity: 10-90% non-condensing
VoIP Trunk 4 20 50 100 100

Become a Yeastar dealer !