Yeastar IP PBX Modules
Yeastar SO module
The Yeastar SO module includes one FXO and one FXS port to MYPBX
Yeastar GSM module
The GSM is a module with 1 GSM port to terminate GSM network
Yeastar 4G LTE Module
4G LTE modul, 3G/4G network standard, VoLTE & SMS features
Yeastar ISDN (BRI) module
The B2 is a module with 2 BRI ports to terminate two BRI lines