asterisk users - Jan 2010 - AudioCodes MP-114 2xFXS/2xFXO - FXO not working correctly

I have AudioCodes 2xFXO / 2xFXS but can not make the FXO port to work correctly;
I can dial out on one FXO port or the other FXO, but not on both.
It depends on Sorting in : Hunt Group Setting (Ascending, Descending)
If setting is set to a "Cyclic Ascending" I can dial out on FXO port
every second call.

Can anybody share their setting how is it done in mix environment FXS/FXO in
AudioCodes MediaPack?

-- 
Joseph