Yeastar O2 2-FXO-Port Module for S-Series IP PBXs - YST-O2
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Yeastar YST-O2 is a module for inserting into a compatible Yeastar IP-PBX, giving two of the PBX's RJ11 ports FXO connectivity. FXO ports are used for connecting a VoIP phone system to POTS (analog) telephone lines, for instance.
Yeastar O2 Module Compatibility :
Yeastar S-Series
Yeastar MyPBX SOHO
Yeastar MyPBX Standard
Yeastar MyPBX U100
Yeastar MyPBX U200
Yeastar MyPBX U500 Series