Yeastar S50 VoIP PBX

S50 is a compact and full-featured IP-PBX that comes in a 19’’ 1U rack-mountable chassis. The advanced module-based S50 is capable of supporting ISDN BRI, PSTN, and GSM connectivity, providing VoIP communications for up to 50 users.

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50 Users
25 Concurrent Calls
Up to 8 FXS/FXO/BRI Ports
Up to 4 GSM/3G/4G Channel

Security
Protected from Internet hackers,
viruses with built-in firewall, TLS,
SRTP, and more.

Performance
Powered by Freescale ARM A9
industrial grade quad-core CPU
processors.

Future-proof
Free lifetime software/firmware
upgrade assure reliability over the years.

Easy to use
Save time with streamlined
installation. Manage PBX on the intuitive web GUI.

Phone provisioning
Automatically provision phones
from Yealink, Snom, VTech,
and more.

Flexible Modular Design

With Yeastar S-Series, all the telephony interfaces are modular and customizable, S50 support 4 onboard module slots to custom FXS, FXO, ISDN BRI, GSM/3G/4G.

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FXS Module

FXO Module

PSTN Lifeline

BRI Module

GSM Module

3G Module

4G Module

Linkus Unified Communications App

Linkus is a unified communications app for Windows desktop, Mac desktop, iPhone and Android phones. Designed for Yeastar Cloud PBX and S-Series VoIP PBX, it transforms your desktop and mobile phone into a fully-featured office extension.

Available using Windows, macOS, iOS, and Android
Make and receive enterprise VoIP calls anywhere anytime
Outlook Contacts and Google Contacts integrated; more CRM to support
Instant messaging and file sharing empowered by Linkus Cloud Service

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App center. Easy access to a wealth of PBX features.

Learn more about the powerful apps >

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.