Yeastar IP PBX S20

S20 is a stand-alone telephone system offering an unrivalled range of features to small business with less than 20 users. It supports 10 concurrent calls and various combinations of telephony ports including FXS, PSTN, ISDN BRI, and GSM/CDMA/3G. Up to 4 FXS/FXO Ports, Up to 4 BRI Ports, Up to 4 BRI Ports and Up to 1 GSM/CDMA/3G Channel.



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