I am so fed up with Digium cards. My company first owned a TE410P,
I installed it in a Dell server and "enjoyed" its instability (we
bought it months before Digium warned about the incompatibility
issues). Then we switched to a TE411P for the hardware echo
cancellation. Now we want to receive fax
I changed from a TE410P to a TE411P and fax carriers weren't detected
anymore !
I have tried everything (recompile zaptel+asterisk+spandsp ;
echocancel=yes/no ; rxgain=0/txgain=0 ; increase Wait() ; ...), nothing
worked.
The only solution that worked for me was to install and use NVFaxDetect.
HTH.