Yeastar S20 VoIP PBX – Complete Step by Step Tutorial

In today’s episode “Yeastar S20 VoIP PBX – Complete Step by Step Tutorial “. Yeastar S20 is a VoIP PBX for Small Business. It is a stand-alone PBX System that supports : – 20 Users – 10 Concurrent Calls – Up to 4 FXS/FXO/BRI Ports – Up to 1 GSM/3G/4G Channel – 20 VoIP Trunks… Continue reading Yeastar S20 VoIP PBX – Complete Step by Step Tutorial