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 | https://www.yeastar.com/s300-voip-pbx/


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Robust Feature Set for All of Your Calling Needs

The Yeastar S-Series is designed to help you grow your business by providing plenty business-enhancing
system features and functions. Learn more about the business-enhancing features.