Features,
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, MyPBX E1, MyPBX E1 Plus, MyPBX Enterprise and TDM800 Card.
