Yeastar SO Module with 1FXO+1FXS. The Yeastar SO Module is compatible with MyPBX series and S-Series PBX and has a unique PSTN Fallback Function enabling you to make/receive calls even when system powers down.
Key Product Features :
Yeastar 1fxs And 1 Fxo Port
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 Mypbx Soho Mypbx Standard Mypbx Pro