Yeastar 2 FXO Ports O2 Module | O2

Yeastar O2 module is a module with 2 FXO ports to terminate two analog PSTN (POTS) lines. It is compatible with Yeastar S-Series VoIP PBX and P-Series PBX System.

Compatible with P520, P550, P560 & P570 (P560 and P570 require EX-08 Expansion Board)