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S-Series IP PBX

Yeastar S-Series IP PBX

The Yeastar S-Series IP PBX is a flexible communication solution designed to meet the evolving needs of today's businesses. With advanced features and scalability, the S-Series empowers organizations to optimize their communication workflows and enhance productivity.

S-Series IP PBX Models

  • Yeastar S412: A modular VoIP PBX for small businesses, supporting 8 users and 8 concurrent calls. It features 12 FXS ports and built-in security, along with free lifetime software upgrades for reliable performance.
  • Yeastar S20 : Compact and affordable IP PBX solution ideal for small businesses with a maximum of 20 users. It offers essential features like VoIP calling, voicemail, and call forwarding.
  • Yeastar S50: IP PBX solution suitable for growing businesses with up to 50 users. It offers advanced features like video conferencing, mobile integration, and call recording. 


  • P-Series Appliance IP PBX
  • S-Series IP PBX
  • P-Series Software IP PBX
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[S20] Yeastar S20 IP PBX Sale

Yeastar S20 IP PBX

[S50] Yeastar S50 IP PBX Sale

Yeastar S50 IP PBX

[S412] Yeastar S412 S-Series IP PBX S412_Interior_with_Module_Right.webp

Yeastar S412 S-Series IP PBX

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About us

Cloud One Limited is a leading telephony service provider established in 2017. we offer reliable and secure cloud and on premise telephony solutions, including SIP trunks, Yealink IP phones, and VPS hosting in our Tier 3 data center.

Our mission is to revolutionize cloud communications by providing unparalleled reliability, cutting-edge innovation, and substantial cost savings. We deliver a stress-free, always-available service experience that empowers businesses to thrive in the digital age.

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