fax configuration dramas on uc520

[rickrude11]

I have a uc520 with 2 BRI interfaces and 4 FXS interfaces. My fax line comes in on the BRIs, and the fax machine is hooked up to fxs port 0/0/0.

when I test the fax, the fax machine picks up, but errors saying it can't detect a fax or unable to negotiate fax protocol.

I need a direction to head. I can find plenty of documentation on using analogue lines, but not for my setup.

thanks.

 

[rickrude11]

update: I set the compand-type to a-law and cptone to NZ. Getting full pages sometimes, half pages other times.

cheers.