o FXO Module
o 2 x FXO Line for S-Series/P-Series

50 Users 25 Concurrent Calls
o Two Gigabit Ether Port
o MicroSD Port

Yeastar 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

10 Concurrent Calls

Up to 4 FXS/FXO/BRI Ports

Up to 1 GSM/3G/4G Channel

20 VoIP Trunks