Echo Cancelation


I have the card TE412P , this card have the module VPMOCT128, with módule i need turn on in zapata.conf the “echo cancel options” or i dont need? My friend say me that options only work for the software echo cancelation, with módule i dont need enable it … its true???

echocancel = no
echocancelwhenbridged = no
echotraining = no

Thx Alot