Fax doesn't works

[jpons]

Hi all

I'm using quadro2x

I want that quadro divert the fax calls to other sip extension.

I want to send faxes via the same extension.

The problem is the fax machines never sinchronizes and never works.

And now, the most incredible, if i try to send one fax from sip extension to first analog extension, it works, and vice versa.

It appears isn't problem with the sip extensions.

Any ideas??

Thanks