Description

Yeastar SO Module 1FXS and 1 FXO

Yeastar SO Module with 1FXO+1FXS. The Yeastar SO Module is compatible with S-series and P-Series PBX and has a unique PSTN Fallback Function enabling you to make/receive calls even when system powers down.

Yeastar SO Module 1FXS and 1 FXO

A module with 1 FXS port and 1 FXO port. Unique PSTN Fallback Function! Make/receive calls even during a system power break down. It can be used in Model: S20, S50, S100, S300, P550, P560, P570.