Fax on FreePBX 2.8

Hi Everybody, I installed the AsteriskNOW default instalation with Freepbx, everything work except the FAX.
When I send a fax, my fax return a message like:
"Other FAX nor respond"
I don’t know I set the IVR to recept the FAX correctly.
I used a system called “Meucci”, a brazilian custom FreePBX old version, and on it, I can set a option on General Settings when, a fax has arrives, it’s redirected to my email. I have some dificulties with this configuration on FreePBX.
Please, help me!