Yeastar S20 VoIP PBX

Easy to use. Powerful in Production
Built for Small Business

Yeastar S20 is a stand-alone PBX system with unrivalled range of features for business with less than 20 users. It’s built to be simple to use and powerful in production.


20 Users

10 Concurrent Calls

Up to 4 FXS/FXO/BRI Ports

Up to 1 GSM/3G/4G Channel

20 VoIP Trunks

Yeastar S50 VoIP PBX

Small Business Communications, Without Compromise

Support up to 50 users, the rack-mountable Yeastar S50 comes all-in-one with industrial-grade components to fuel small business success. It boasts complete advanced features with superior Unified Communications and rich built-in APIs to empower small business communications, without compromise.


50 Users

25 Concurrent Calls

Up to 8 FXS/FXO/BRI Ports

Up to 4 GSM/3G/4G Channel

50 VoIP Trunks

Yeastar S100 VoIP PBX

Modern UC System. Ideal for Small and Midsize Businesses

Support up to 200 users, Yeastar S100 is a scalable module-based VoIP PBX built to empower and streamline the way you do business. It is equipped with a quad-core processor, robust Unified Communications and excellent interoperability with the ease of use.


100 Users (expandable to 200)

30 Concurrent Calls (expandable to 60)

Up to 16 FXS/FXO/BRI Ports

Up to 6 GSM/CDMA/3G/4G Channels

Up to 2 E1/T1/PRI Ports

Yeastar S300 VoIP PBX

Enterprise-class Communications Tailored for You

Support up to 500 users, Yeastar S300 delivers enterprise-class IP telephony services with a strong presence in scalability, mobility, 3rd-party integration, unified communications, and the ease of use and management.


300 Users (expandable to 500)

• 60 Concurrent Calls (expandable to 120)

Up to 24 FXS/FXO/BRI Ports

Up to 6 GSM/CDMA/3G/4G Channels

Up to 3 E1/T1/PRI Ports

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