PBX 300 Users
Private Branch Exchange (PBX) S20 is a stand-alone PBX system with unrivalled range of features for business with less than 20 users. It's built to be simple to use and powerful in production. 20 Users<>br/> 10 Concurrent Calls Up to 4 FXS/FXO/BRI Ports Up to 1 GSM/3G/4G Channel 20 VoIP Trunk
