Yeaster VoIP PBX System Supports 16 FXO

•Supports 16 FXO (expandable to 24)
•Supports 300 Users (expandable to 500)
•Supports 60 Concurrent Calls (expandable to 120)
•Supports Up to 6 GSM/CDMA/3G/4G Channels
•Supports 16 FXS (expandable to 24)