hat
Gen twa Loop Retounen Mode: E1 koòdone Loop Retounen (ANA), V.35 koòdone Loop Retounen (DIG), lòd koòdone nan V.35 aleka Loop Retounen (REM)
eng
Have three Loop Back Mode: E1 interface Loop Back (ANA)、V.35 interface Loop Back(DIG)、Command the remote V.35 interface Loop Back(REM)