Meet Your Next VoIP PBX

Yeastar has an Award-winning VoIP PBX System.

Voxtelesys 3CX PBX Sales

Scalable Modular Design

Yeastar S-Series VoIP PBX provides a flexible telephony interfaces combination, while allowing for future scalability with a 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.

Learn more about the S-Series VoIP PBX module

Telephony Modules

FXS extensions module, FXO module, PSTN fallback module, BRI module, and GSM/3G/4G module.

Expansion Boards

Supports 4 modules in one EX08 Expansion Board. Supports 1 E1/T1/PRI port in one EX30 Expansion Board.

Increase Productivity

Expand SIP users and concurrent calls when your business grows with DSP Module.

Yeastar Voxtelesys
Preferred Yeastar SIP Carrier

Voxtelesys is a Preferred Yeastar SIP Carrier. Voxtelesys has been fully tested and certified with each build of Yeastar software. Yeastar strongly recommends using Voxtelesys' SIP Trunk Service to insure compatibility and the highest quality possible.

Linkus Unified Communications App

Linkus is a unified communications app for Windows desktop and Mac desktop, plus 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, Google Contacts, Salesforce CRM and Microsoft Dynamics 365 integrated; more CRM to support
  • Instant messaging and file sharing empowered by Linkus Cloud Service

Robust Feature Set for All of Your Calling Needs

The Yeastar S-Series is designed to help you grow your business by providing plenty of business-enhancing features and functions.
  • App Center
  • AutoCLIP
  • Auto Provision IP Phones
  • Automated Attendant (IVR)
  • Blacklist/Whitelist
  • Billing App
  • Call Back
  • Call Detail Records (CDR)
  • Call Monitor
  • Call Recording
  • Call Routing
  • Call Transfer
  • Conference
  • Distinctive Ringtone
  • Emergency Number
  • Event Center
  • Email to SMS/SMS to Email
  • Fax to Email
  • Find Me/Follow Me
  • Hot Standby
  • Import/Export Extensions
  • LDAP Server APP
  • Mobility Extension
  • Music on Hold
  • Queue
  • Ring Group
  • Remote Management
  • SIP Forking
  • SLA
  • Speed Dial
  • Time Condition
  • User Portal
  • User Privileges
  • Video Calls
  • Voicemail
  • Voicemail to Email
  • VPN Server App
  • Learn more about features