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Yeastar S20 PBX | Modular Design, Supports 20 Users & 10 Concurrent Calls

Product Highlights
  • Supports up to 20 users and 10 concurrent calls
  • Modular design with 2 onboard module slots for easy customization
  • Compatible with FXS, FXO, ISDN BRI, GSM/CDMA/3G, E1/T1/PRI interfaces
  • Built-in SIP capabilities for VoIP communications
  • Scalable and flexible — easily add users and trunk lines as your business grows
  • Ideal for small offices, startups, or branch locations needing a powerful PBX system
  • Overview
  • Specifications
  • FAQ
  • User Guides
  • Reviews

The Yeastar S20 is a compact, modular VoIP PBX system designed specifically for small businesses with fewer than 20 users. Built on Yeastar’s powerful S-Series platform, the S20 offers flexible telephony interface options and the freedom to customize extensions and trunk types to meet specific business needs. With support for up to 10 concurrent calls, the S20 combines rich SIP capabilities and a unique modular design that ensures easy scalability as your business grows.

Equipped with 2 onboard module slots, the S20 allows businesses to integrate a variety of telephony technologies such as FXS, FXO, ISDN BRI, GSM, CDMA, 3G, and E1/T1/PRI, offering full control over how calls are routed and managed. Whether expanding your physical infrastructure or adding more users, the Yeastar S20 is a future-proof solution delivering professional-grade features in a compact and easy-to-deploy system.

  • Supports up to 20 users and 10 concurrent calls
  • Modular design with 2 onboard module slots for easy customization
  • Compatible with FXS, FXO, ISDN BRI, GSM/CDMA/3G, E1/T1/PRI interfaces
  • Built-in SIP capabilities for VoIP communications
  • Scalable and flexible — easily add users and trunk lines as your business grows
  • Ideal for small offices, startups, or branch locations needing a powerful PBX system
Yeastar S-Series VoIP PBX provides flexible telephony interfaces combination while allowing for future scalability with unique modular design. Besides the built-in rich SIP capabilities, S-Series lets you decide what types of extensions and physical trunks you need in your telephone system. When your business grows, adding more users and concurrent calls is also possible with S-Series. With Yeastar S-Series, all the telephony interfaces are modular and customizable, whether it’s FXS, FXO, ISDN B
$299.00
$299.00
$299.00
$299.00
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