Supporting up to 50 users, the rack-mountable Yeastar S50 and S50i are two PBX versions that boast the same feature range yet different hardware supports. They come with complete call-handling features, advanced Unified Communications capacity, and rich built-in APIs to empower small business communications without compromise.


  • 50 Users
  • 25 Concurrent Calls
  • 50 VoIP Trunks
  • Complete PBX Features
  • Linkus UC Clients Support